Small drones have been spotted in and around Royal Air Force Lakenheath, RAF Mildenhall, RAF Feltwell and RAF Fairford since November 20, the U.S. Air Forces in Europe said in a press release. Although the bases have RAF names, they all have significant U.S. military presence.

The British military has increased security around four air bases in the country that are used by U.S. forces after "a number" of drones were spotted near them.

Unidentified drones have been spotted flying over four bases used by the United States Air Force in Britain, prompting the British government to call in military staff to help protect the sites. The U.

LONDON - A criminal investigation has been launched after the U.S. Air Force reported that drones were spotted flying over English military bases, a British official said Wednesday. The U.S. Air Force reported several incursions occurred in the past week at four bases where the American forces operate.

The U.S. Air Force reported several incursions occurred in the past week at four bases where the American forces operate.

Over the past week, unidentified drones have been seen flying over joint U.S.-U.K. military bases in the United Kingdom.

Around 60 British troops, including counter-drone specialists, have been deployed to help defend three air bases used by the US Air Force in the UK after a spate of "weird" drone sightings.