The United States has withdrawn all its bombers from RAF Fairford, a British military base, a US department official confirmed on Sunday. The bombers have been re-deployed to their home stations in America.
The US did not provide a reason for the withdrawal. However, it follows a major incident on 27 September when counter-terror police were alerted to three "suspicious vehicles" near the Gloucestershire airbase.
Five UK nationals were initially arrested on suspicion of explosives offences and later on suspicion of preparing a terrorist act, before being released on bail. A sixth man, a UK-Iranian national, was also later arrested in London on suspicion of preparation of terrorist acts and subsequently released on bail.
Prime Minister Andy Burnham stated days after the incident that there were "strong indications" of Iranian involvement, a claim Tehran has strongly denied.