Two British men have been charged after a counterterrorism probe into a suspected plot against RAF Fairford, an air base used by US forces in the UK. Mohmed Abdulkarim and Nouman Essghir, both 24 and from London, face National Security Act-related charges tied to a security incident last month, prosecutors said Tuesday. Abdulkarim is accused of assisting an unnamed foreign intelligence service with unspecified UK-related activities between Aug. 31 and Sept. 28. He faces one count of assisting a foreign intelligence service. Essghir is accused of surveying an unnamed “prohibited place” on Aug. 22. He faces one count of entering a prohibited place for a purpose prejudicial to the UK. The case began after a Sept. 27 report of three suspicious vans near RAF Fairford. Armed officers and bomb-disposal teams searched the area, and dozens of homes were evacuated. Investigators later said no improvised explosive devices were found, but they recovered an unspecified amount of gasoline. Authorities arrested five British men on suspicion of explosives and terrorism offences. Two more men were arrested in early October. All seven were later released on bail under strict conditions, including restrictions on their movements and contact with others. Essghir was one of two men re-arrested last week as part of the investigation. British media reported the re-arrests led authorities to interview Abdulkarim, while six other men involved in the incident remain on bail. The latest update came after the US withdrew all 12 B-1B Lancer bombers from RAF Fairford on Oct. 4, citing security concerns and an Iran-linked threat. Both men are charged and awaiting the next stage of the court process as the counterterrorism investigation continues.