US special forces enter Iran to rescue downed airman

US special forces entered Iran on Friday night to rescue a crew member of a downed fighter jet.

Iran shot down a US F-15 over its airspace, the first fighter jet destroyed by enemy fire since the war began.

Two crew members ejected, reports suggested, triggering a race between Iran and the US to find the stranded American airmen.

One was rescued in an operation involving two US military helicopters and low-flying refuelling aircraft, which were targeted by light weaponry.