A 41-year-old senior U.S. Army officer was arrested in the United Kingdom on Tuesday on suspicion of assisting Russian intelligence, British police announced. The man, whose identity has not been publicly disclosed, was detained near Gloucester, approximately 90 miles west of London, as part of a joint investigation by U.K. Counter Terrorism Policing and U.S. authorities, including the FBI and U.S. Army Counterintelligence Command. He remains in custody at a London police station as the probe continues.
The arrest was made under Sections 1 and 3 of the U.K.’s National Security Act 2023, which criminalize the obtaining or disclosing of protected information and assisting a foreign intelligence service, respectively. British authorities confirmed that the suspected activity relates specifically to Russia. Police also confirmed that searches are being conducted at two locations in Gloucestershire as part of the ongoing investigation.
FBI Director Kash Patel stated that the arrest involves "allegations of espionage, which is of the utmost concern to the United States and our allies." Patel emphasized that the FBI has "no tolerance for anyone who breaks their oath to the United States and whose actions endanger our national security and that of our partners." He added that the bureau has made 167 counterintelligence and espionage arrests over the past 21 months, a 53% increase compared to previous periods.
Brigadier General Sean Stinchon, commanding general of the U.S. Army Counterintelligence Command, described the alleged conduct as a "sobering reminder that insider threats are real and persistent." Stinchon praised the collaboration between U.K. and U.S. authorities, stating that the case "demonstrates the strength of our partnerships and the resolve of the counterintelligence community."
Deputy Assistant Commissioner Vicki Evans, the U.K.’s Senior National Coordinator for Counter Terrorism Policing, called the allegations "serious" and noted that the investigation is "very much ongoing." Evans highlighted the joint effort between British and American agencies, stating, "This significant arrest and investigation is a result of close collaboration between UK and US authorities." She added that authorities will "take robust action against those we suspect of any criminal activity that could undermine our national security."
The suspect is reported to be based at Imjin Barracks, the headquarters for NATO’s Allied Rapid Reaction Corps, located in Gloucestershire. While the exact nature of the alleged espionage has not been detailed, the arrest follows a period of heightened tensions between Western nations and Russia, with British intelligence agencies warning of increased hybrid warfare activities by Moscow.
British and U.S. officials have not provided further specifics about the alleged activities, citing the ongoing nature of the investigation. Authorities have urged the public to avoid speculation until more information is available.
The case comes amid broader concerns about foreign espionage threats in Europe, with MI5 Director General Sir Ken McCallum previously describing Russia as "aggressor number one" in hybrid warfare targeting the U.K. Earlier this month, the U.S. also removed aircraft from British military bases following a separate apparent threat from Iran, underscoring the elevated security environment in the region.
Investigators have not linked this case to any other ongoing counterterrorism operations, according to statements from British authorities.