NEW YORK, Nov 11 — The US Justice Department yesterday announced charges against three men it described as “Iranian operatives,” including one already in jail, over their role in an alleged terrorist plot at Britain’s RAF Fairford airbase.

Mohammad Baqer Saad Dawood al-Saadi, Mohsen Mohajeri and Mohammad Ali al-Hassani allegedly helped plan and direct the September incident at the base, which has been used by the US military in its operations against Iran.

Police were called to the Fairford site in southwest England after a local farmer reported seeing a group of men with several white vans engaged in “suspicious” activity.

A US charging document states that Al-Hassani, a 35-year-old Iraqi national, directed unnamed individuals to drive to the base in the vans, some of which contained barrels of fuel.