A British man has been arrested on suspicion of espionage and terrorism offences in Cyprus.
The man is reported to have kept the RAF Akrotiri base on the island under surveillance and is alleged to have links with Iran’s Islamic Revolutionary Guard Corps, local media reported.
A Foreign Office spokesman said: “We are in contact with the authorities in Cyprus regarding the arrest of a British man.”
RAF Akrotiri is the UK’s most important airbase for operations in the Middle East.
The Philenews website said the man was arrested on Friday following intelligence he was planning an imminent terrorist attack.
He is alleged to have lived in a flat in Zakaki, Limassol, close to Akrotiri and was observed near the base carrying a camera with a long lens and three mobile phones.
Local reports suggested he was Azerbaijani but the UK Foreign Office said they were working with the authorities over the arrest of a Briton.
RAF Typhoon jets from Akrotiri were used to defend Israel from Iranian drone and missile attacks last year, although they have not been involved in the current fighting between the two Middle East rivals.
The base is also used for flights as part of Operation Shader to counter Islamic State militants.
In a sign of some of the more sensitive activity at the base, Prime Minister Sir Keir Starmer visited Akrotiri in December last year and said “quite a bit of what goes on here can’t necessarily be talked about all of the time”.
Security at RAF bases is under scrutiny after Palestine Action protesters entered the Brize Norton base in Oxfordshire and vandalised two aircraft.
RAF Brize Norton serves as the hub for UK strategic air transport and refuelling, including flights to RAF Akrotiri.
Shadow foreign secretary Dame Priti Patel said: “The Government must ensure the full force of our laws are used against Iranian foreign agents and they must urgently secure all our military bases at home and abroad to protect our national interest and our allies.”
