Major incident declared at Fairford air base used by US Air Force

About 30 emergency vehicles attended a "major incident" near RAF Fairford. ( Reuters: Toby Shepheard )

UK police have arrested five men at a RAF base in south-west England on suspicion of preparing a terrorist act, authorities.

The US military has used the base to carry out strikes on Iranian missile sites.

US President Donald Trump saying the attackers planned to do "big damage" to the base.

Link copied Share Share article British authorities have arrested five men suspected of planning a terrorist plot at at English RAF base US forces have been using to strike Iranian targets.

It followed a tip-off that three vans were heading to the military airfield.

Authorities declared a major incident and evacuated homes in a village near RAF Fairford, moving residents moved to a nearby leisure centre on Sunday.

Five men were also charged with allegedly committing offences under the Explosives Act.