A US fighter jet has been shot down over Iran, and a search is underway for the crew, according to US sources.

Iran has caused two military aircraft to crash - the F-15 and the A-10 - and hit two Blackhawk helicopters in a single day, less than 48 hours after Donald Trump said in his primetime address that Ira...

Footage posted on social media and verified by the BBC shows a refuelling plane and two helicopters flying low over Khuzestan province, consistent with a search and rescue mission.