The US withdrew its bombers from RAF Fairford after an investigation into an alleged planned terrorist attack on the base. At least 10 B-1 bombers used by the US military in the Iran conflict flew out of Fairford on Sunday, suggesting US officials were taking the threat seriously. Last week, five men in three vans near the military base were arrested, followed by a sixth British-Iranian national. All were released on bail, drawing criticism from the Pentagon. Lucy Hough speaks to Dan Sabbagh, the Guardian’s defence and security editor – watch on YouTube

A dozen B-1s stationed at Gloucestershire base redeployed over concerns about possible threat from Iran

Downing Street has insisted RAF Fairford is secure a day after the US air force suddenly withdrew a dozen B-1 bombers from the Gloucestershire base over security concerns about a possible threat from Iran.

The prime minister’s spokesperson, speaking during a scheduled briefing, said “yes” when asked if the military site was safe – contrasting with the concern the US military revealed during the hasty redeployment the day before.

Aircraft leave Gloucestershire base to return to US following arrest of dual British-Iranian national in central London

The US Air Force has pulled its bombers from RAF Fairford following an investigation into an alleged planned terror attack at the base.

The bombers were redeployed back to their home bases in the US, according to a Pentagon official who was not authorised to discuss sensitive military movements and spoke on Sunday on condition of anonymity.