A member of the US Army has been arrested on suspicion of offences under the National Security Act 2023 which relate to Russia, Counter Terrorism Policing London has said.
The man, 41, was arrested as part of an investigation by Counter Terrorism Policing, working closely with US authorities, the US military and the FBI, the force added.
Arrest near Gloucester
He has been arrested on suspicion of offences under Section 1 and Section 3 of the National Security Act 2023 near Gloucester, Gloucestershire, on Tuesday.
The man remains in custody at a London police station.
Searches and allegations
Officers are carrying out searches at two locations in Gloucestershire.
Police said the country to which the allegations relate is Russia.
