Tara Mewawalla
Live reporter

Image source, EPA/Shutterstock

The Houthi group in Yemen has taken responsibility for multiple "targeted" attacks on Saudi Arabia in the past 24 hours, including the deadly attack on King Khalid International Airport in Riyadh on 10 October.

The attack resulted in 13 people being killed and more than 300 injured.

The Houthi group reiterated its stark message to all airline companies, warning them not to use Saudi airports or airspace, as "they are unsafe".

Hundreds of flights have been delayed or cancelled in or out of Saudi Arabia today, while the kingdom has moved schools to remote learning for a week out of safety concerns.

Earlier today, the same airport was struck again, resulting in "some injuries," the Saudi civil aviation authority says.

These are the latest in a spate of attacks on the country, representing a heating up of the conflict between the Houthis and Saudia Arabia - which is backing the internationally-recognised government in Yemen that the Houthis are working to topple.

You can get a fuller timeline of the recent attacks here. We also have explained who the Houthis are, why they're fighting Saudi Arabia and what they want in our earlier post.

Our correspondents write that the group seems to be penetrating Saudi air defence with ease, while the country's reputation is taking a battering.

We are ending our live coverage now but you can read more in our full news story here.

Saudi's civil aviation authority has confirmed the King Khalid International Airport was struck again today.

In a statement, it says the attack "resulted in injuries", but does not specify how many.

"Damage assessments and safety inspections of airport facilities are underway," it adds.

Earlier, the Saudi-led coalition said an unknown projectile hit one of the airport's buildings, causing a fire.

An Indian national, who was injured in the attack on the King Khalid International Airport on Saturday, has died, according to the Indian Embassy in Riyadh.

In a statement on X, the embassy sends condolences to his family and said it would provide "all support for ensuring the early repatriation of mortal remains".

5 October: King Abdullah bun Abdulaziz International Airport and Najran International Airport were targeted, according to the Saudi civil aviation authority, who said that no deaths were reported and three people were injured.

A statement from Yemen's Houthi group that evening claimed the group had carried out attacks on different locations, including King Khalid Airport in Riyadh, Aramco facilities in Rabigh, and Abha Airport.

6-7 October: Two separate attacks took place over this period, one at King Khalid International Airport, resulting in one death and eight injuries, and another at Abha International Airport, killing two people and injuring 28.

Houthi statements claimed responsibility for an attack on Abha International Airport and on King Khalid International Airport.

8 October: King Khalid International Airport in Riyadh was subject to two attacks that killed three Saudi Arabian nationals, according to Saudi's civil aviation authority,

The Houthis said they had attacked the airport with ballistic missiles.

10 October: The same airport was targeted again yesterday, killing 12 people and injuring over 300, the Saudi civil aviation authority confirmed.

A Houthi spokesman statement reiterated a "warning" to those using Saudi airports and airspace.

11 October: The Saudi-led coalition said further attacks had been launched on the airport, with an "unknown projectile" hitting a passenger hall and causing a fire.

On Sunday, the Houthis said they had carried out three phases of attacks on the airport, starting on Friday evening which "resulted in the complete closure of the airport".

The Houthi group has put out a statement taking responsibility for Saturday's deadly attack on the King Khalid International Airport in Riyadh, Saudi Arabia, and reiterating its warning to all people not to operate flights to Saudi airports.

Houthi spokesman Yahya Saree says on Telegram that it is in response to "brutal Saudi aggression against our country and our people" and claims Saudi Arabia launched 124 airstrikes in the past 24 hours at Yemen's territory controlled by the group.

Saree says in the past 24 hours the Houthis carried out four operations, which include:

• Three phases of attacks on King Khalid International Airport, starting Friday evening, which he claims resulted in the complete closure of the airport
• An attack on Shugadam gas facility, belonging to Saudi's national petroleum and natural gas company Aramco, which he says caused "large fires"
• An attack on Aramco's Tanajib oil refinery, resulting in "ignition"
• And a fourth operation targeting King Fahd International Airport in Dammam, which he says caused air traffic disruption

The statement adds: "We reiterate our warning to all international companies, experts, employees, workers, and travelers from all over the world to not operate flights to Saudi airports, as they are unsafe, except for the airports and airspace of the holy cities of Mecca and Medina."

The Houthis say they carried out "targeted" attacks on Riyadh airport on Saturday, which resulted in 12 people being killed and more than 300 injured.

In a statement, the group says they "targeted in three phases King Khalid International Airport in Riyadh starting the evening before last, resulting in the disruption of air traffic and the complete closure of the airport".

We'll bring you more on this statement shortly.

Hugo Bachega
Middle East correspondent in Beirut

There's been a very short statement from the Saudi-led coalition in Yemen, announcing an unknown projectile has struck Riyadh international airport again.

It comes after the attack that killed 12 people on Saturday and it's an indication that the Houthis continue to carry out attacks deep inside Saudi Arabia.

They've been saying that these attacks are going to continue and there will be more questions about how these attacks have been happening.

We've seen that in recent weeks the Iran-backed group have carried out multiple missile and drone attacks targeting not only this airport in Riyadh but also critical energy infrastructure across the country.

This has disrupted daily life in Saudi Arabia and left an entire nation in shock and has put a lot of pressure on the Saudi leadership as well.

As a reminder, the Houthis have not commented on the latest attack on Riyadh airport.

Frank Gardner and Jon Donnison
BBC security correspondent and Jerusalem correspondent

As part of the "axis of resistance", the Houthis are a vital strategic partner for Iran.

The Red Sea shipping route has become increasingly important, because the Strait of Hormuz, on the other side of the Gulf, has still not fully reopened since the US and Iran have failed to reach a deal to end their war.

Targeting ships in the Red Sea is another way that the Houthis are trying to exert leverage - the attacks cause global economic damage, which is a key bargaining chip for Tehran.

In early September, the White House stated it would not directly intervene in the Yemen conflict, but could provide intelligence support to the Saudis. It later confirmed that it was supplying intelligence and had deployed military experts to Saudi Arabia.

However the situation may have taken a new turn following the latest attack on Riyadh, which killed a US citizen.

Speaking to reporters, US President Donald Trump called Saturday's attack "terrible" and indicated he may intervene militarily with the Saudis.

"We just found out about the recent attack, so we'll make a decision. We move very quickly," Trump said.

But that now seems unlikely, at least before crucial US midterm elections next month.

The Saudi-led coalition says that further attacks have been launched against King Khalid International Airport, in Riyadh.

Maj Gen Turki al-Maliki, the official spokesman for the coalition, says that an "unknown projectile" hit Passenger Hall No 4 at the airport, causing a fire which authorities were dealing with.

In a separate update, he says that air defences have intercepted a cruise missile in the vicinity of the airport.

The Saudi-led coalition was formed in 2015 after Arab countries joined forces to stop the Houthis taking over Yemen from the country's internationally recognised government.

Marc Ashdown
Business correspondent

King Khalid International Airport is one of the busiest in the Middle East. Around 50 airlines use it to transport tens of thousands of passengers every day.

But in the aftermath of the attack, and with the Houthis issuing a fresh warning to airlines against using Saudi airports and airspace, hundreds of flights are being delayed or cancelled.

In a few weeks time, Riyadh is also due to host an annual investment event known as ‘Davos in the desert’.

A host of politicians, heads of state, and key players in the world of finance are set to attend; and although the organisers are yet to comment, there’s concern that it could be disrupted.

The conflict between the US and Iran has already seen around 80 sites across the Gulf targeted - mainly gas fields and oil refineries - causing an estimated $60 billion dollars worth of damage. The World Bank recently downgraded its growth forecast for the region.

But this attack will be felt far more widely. It’s likely to heap yet more pressure on economies across the world, which are grappling with rising inflation caused by the war pushing the cost of daily essentials ever higher.

The cancellation and delays of hundreds of flights to and from Saudi airports has brought disruption to airports further afield.

These are some of the latest pictures from Dhaka's Hazrat Shahjalal International Airport, where stranded passengers have been telling Reuters about the short-notice cancellation of their flights.

Around 3.5 million Bangladeshis live in Saudi Arabia, according to Reuters.

Image source, Reuters

Image source, Reuters

Image source, EPA

Abdullah Al-Alimi Bawazir, vice-president of Yemen's internationally-recognised government, has called for "decisive actions" from regional and international partners.

The attack on the international airport in Riyadh "demands a firm regional and international position that goes beyond statements of condemnation to practical measures", he says.

"We stand steadfastly alongside the Kingdom of Saudi Arabia" and "highly appreciate its advanced role in curbing the Houthi terrorist militia", he says.

• As a reminder, the Houthis control a large portion of Yemen and want to topple its internationally-recognised government, which is backed by Saudi Arabia - here's the background

Houthi-run Al Masirah TV has just reported that "the Saudi enemy" launched an airstrike on Sanaa International Airport in Yemen.

The Saudi-led coalition (which backs the internationally recognised Yemeni government) has not yet commented. Nor has the Saudi government.

It comes after the coalition blamed the Houthis for an attack on the international airport in Riyadh on Saturday.

The US embassy in Saudi Arabia is warning government employees they need special authorisation to use the King Khalid International Airport in Riyadh, as well as the airports in Jeddah and Dammam. 

The warning has been extended, with a similar alert yesterday only specifying the Riyadh airport.

The embassy also "strongly recommends" that all US citizens avoid the Riyadh airport and surrounding areas.

"Please take extreme caution when using all major airports in Saudi Arabia," it says.

The Australian embassy in Saudi Arabia has advised members of its community to "shelter in place until further notice".

Sharing the advice in a Facebook post, it says: "Stay indoors, follow the advice of local authorities, and avoid unnecessary travel."

No further information is given, but it follows a strike on the international airport in Riyadh on Saturday, and separate strikes earlier this month.

Russia has condemned Saturday's attack on King Khalid International Airport.

In a statement shared by the foreign ministry, it calls on "all parties to the conflict... to completely refrain from attacks on civilian infrastructure".

There are no Russian victims of the strike, according to preliminary information.

The foreign ministry says "there is no alternative" to resolving the crisis in the region "through political and diplomatic means".

Following the attack on King Khalid International Airport, Saudi Arabia's civil aviation authority said it "temporarily suspended" airport operations "pending the completion of damage assessments and safety inspections".

With travel plans now disrupted, these images from yesterday show people gathered outside a metro station on the road to the airport:

Image source, AP

Image source, AP

Image source, Reuters

The UK Foreign Office is advising against all travel to parts of Saudi Arabia.

It advises against:

• All travel to within 10km of the border with Yemen
• All but essential travel to Aseer province, Riyadh province, Najran province, Jizan province and Taif city and Taif International Airport

Foreign Secretary Ed Miliband earlier said he was "appalled" by the attack on King Khalid International Airport in Riyadh, adding "we stand in solidarity with those affected".

He told British nationals to avoid the airport, following Saudi authority advice, and to follow the government's travel advice, external.

Hesham Shawish
BBC Monitoring Middle East Journalist

This morning we saw the fresh warning from the Houthis, warning people against using Saudi airports and airspace.

The latest warning shows that Houthi signalling towards Saudi civilian aviation is part of the pressure campaign against the Saudis to try and end their blockade of Houthi controlled areas in Yemen.

This type of warning is really intended to amplify the psychological and economic impact. We've already seen hundreds of flights cancelled or delayed by airlines, so it does have a major impact.

It will make travellers and insurers more wary too, so it is intended to cause a lot of damage beyond physical damage.

We'll likely see an increase in the diplomatic lobbying for countries to either condemn the Houthi escalation against Saudi airports or for an intervention from Pakistan and Turkey - the two other signatories of the Mecca pact, a joint defence agreement.

The United Arab Emirates (UAE) has condemned Saturday's attack on its neighbour Saudi Arabia.

These attacks are a "flagrant violation of the sovereignty" of Saudi Arabia, says the foreign ministry in a statement.

It says it reaffirms its "full solidarity" with Saudi Arabia and "support for all measures aimed at safeguarding the Kingdom's security and stability".