A US military man is suspected of spying for Russia in the UK.
The 41-year-old senior soldier was arrested near the city of Gloucester in western England. The case involves "allegations of espionage of concern to the United States and our allies," FBI Director Kash Patel said.
The British police clarified that the case is related to Russia.
Brigadier General Sean Stinchon said the military's alleged actions with access to classified information "serve as a sobering reminder that the threats from people with insider access are real."