Counter-terror police have confirmed that searches of three vans discovered near RAF Fairford in Gloucestershire, west England, yielded a quantity of petrol but no explosive devices. The discovery was made after the vehicles were spotted in the early hours of Sunday morning, leading to a major security alert around the US military-operated airbase.

Five men, all UK nationals aged between 23 and 25, were initially arrested on suspicion of explosives offenses and later terrorism offenses. They were subsequently released on bail the following day. Police described the decision as an "investigative decision which was grounded in experience and strategy." The incident prompted a significant police response, including the deployment of a bomb disposal team and the establishment of a 400-meter cordon.

Residents from approximately 85 evacuated homes have since been allowed to return to their properties, and police cordons are expected to be fully lifted by Wednesday. The five men arrested are from Westminster and Camden, and searches of their homes have been completed. Assistant Commissioner Laurence Taylor stated that the bail conditions imposed are stringent, controlling their movement and contact with others.

Assistant Commissioner Taylor addressed the surprising nature of the bail decision on Tuesday, emphasizing that public safety remains paramount. He acknowledged the public's potential surprise but reiterated that the bail was an "investigative decision and one which is grounded in experience and strategy." US President Donald Trump expressed disappointment with the bail decision, stating he was "disappointed the five men had been released on bail."

The incident near RAF Fairford, a base utilized by the US Air Force for decades, has drawn international attention. Recent months have seen US bombers operating from the base for missions in the Middle East, following UK approval for its use in defensive strikes against Iran. This context is significant, as Iran had previously stated that any base used for aggression against its territory would be considered a legitimate target.

Police are actively pursuing multiple lines of inquiry into the incident. Assistant Commissioner Taylor indicated that investigators are examining the possibility that proxies or individuals, acting either knowingly or unknowingly on behalf of a foreign state, may have been involved. This comment came amidst heightened international commentary, which Taylor suggested may have exacerbated public concern.

A member of the public alerted authorities after arriving home to find the road blocked by the three suspicious vehicles and a group of masked individuals. The woman who made the emergency call told the BBC that she believes her "999 call foiled whatever plans they had."

Prime Minister Andy Burnham chaired a Cobra meeting on Monday afternoon to discuss the security situation. The investigation continues as authorities work to understand the full scope and intent behind the suspicious activity near the strategically important airbase.