The BBC spoke to various experts about the dangers artificial intelligence could pose.
Synthetic opioids like fentanyl are more powerful and in plentiful supply, and they have transformed the drugs landscape.
The BBC's Quentin Sommerville spoke to the daughter of a former heroin addict about the effect drugs have had on her family.
Albertans are voting on whether to stay in Canada or pursue independence via a referendum, splitting even some close-knit families.
The BBC's Quentin Sommerville reports from Chicago, where communities are battling a new wave of synthetic drugs.
BBC News hears from users, dealers, prison and recovery workers as America battles with a deadly new drug epidemic.
The White House says the new press secretary is "transitioning out" of the role just days after taking the job.
Video shows aircraft battling the flames in the Malibu hills in California, as officials say the blaze is 17% contained.
The president's comments come just days after Katie Zacharia held her first press briefing on Tuesday.
A 16-year-old killed three children and a teacher at a primary school in Oregon before he was killed by a bystander, police say.
Three children aged 5, 8 and 11 and a teacher were killed after a 16-year-old suspect opened fire in the city of Bend, local police say.
The BBC's Sarah Smith travelled across the state ahead of the midterms, as the president faces political headwinds.
The Since U Been Gone singer claims she was "looked at as if I couldn't afford" an item in the store.
One person has died and others were injured after an incident at a US amusement park.
A jury found Davis guilty in September of one count of murder with a deadly weapon for the rap superstar's death in a drive-by shooting in Las Vegas in 1996.
The BBC's Sarah Smith was in the room and describes Zacharia's performance and the moment she broke news about Kimberly Guilfoyle being asked to resign.
A series of calls, obtained by the Associated Press, reveal emergency services were delayed in reaching Pike.
Horticulture teacher Travis Gienger hauled his pumpkin from Minnesota to Half Moon Bay, California where he won the annual event.
The BBC's Ione Wells reports from outside the Minnesota representative's home as several immigration agents were seen carrying boxes from the house to a van.
Large waves from the post-tropical cyclone battered homes in Long Beach, and brought flooding to parts of Las Vegas near the famed Strip.
WATCH: The BBC's Nadine Yousif meets the separatists who want to quit the country - and the Canadians calling for unity in the face of threats from US President Trump.
