Iranians have shared their accounts of the moment several oil depots were hit by strikes overnight, according to the BBC.
A resident described the scene as "it was as if night had turned into day".
Fuel depots were hit in Tehran and Karaj, west of the capital, citing a source in Iran's oil ministry, local news agencies reported.
Timeline of Events
Video showed a street on fire in Tehran near one depot, where a man could be heard saying shops and homes were ablaze.
A man from Karaj said "it started with a red light that lit up everything followed by a wave that jolted the door".
Response From Authorities
Esmaeil Baqaei, spokesman for the Iranian foreign ministry, said the strikes "are releasing hazardous materials and toxic substances into the air", which are "endangering lives on a massive scale".
Iranian authorities have asked residents to stay at home and are monitoring air quality in the capital.
Casualties and Damage
The US-Israeli attacks have killed at least 1,332 Iranian civilians and wounded thousands, according to Iran's UN ambassador, Amir Saeid Iravani.
A woman from Tehran said the city was covered in smoke, adding "you can smell the burning. I can't see the sun. There is a horrible smoke."
International Context
The US-Israeli strikes on Iran, which began with the assassination of Iran's Supreme leader Ayatollah Ali Khamenei, are now in their second week.
Iran has responded by launching its own strikes at US allies and assets across the region.
US President Donald Trump has justified attacking Iran by saying its government posed an imminent threat to the United States, citing Iran's nuclear programme.
