Watch: Huge blaze after attack on petrol tank in Libya
Firefighters in Libya are trying to contain a large blaze at a petrol tank in Zawiya.
Officials said the site was targeted by unknown attackers.
The tank, which collapsed, contained more 3,000 tonnes of gasoline.
The company said a drone had fallen in the area afterwards - the third such incident in two days.
So far, no one has claimed responsibility for the attack.
