(NewsNation) — Small drones were spotted last week around three U.S. Air Force bases in eastern England, the military branch confirmed.
Between Wednesday and Friday, multiple unidentified drones were detected near RAF Lakenheath, RAF Mildenhall, and RAF Feltwell, which are used by American forces.
The drones were actively monitored after being seen near and over the three bases, U.S. Air Forces Europe said in a statement.
“To protect operational security, we do not discuss our specific force protection measures but retain the right to protect the installation,” the Air Force told the Associated Press.
“We continue to monitor our airspace and are working with host-nation authorities and mission partners to ensure the safety of base personnel, facilities, and assets.”
The Air Force didn’t identify who was behind the incursions but said base officials determined there was no impact on residents or critical infrastructure.
"We take threats seriously and maintain robust measures at defence sites. This includes counter-drone security capabilities," a British Ministry of Defense spokesperson told NewsNation. “We won’t comment further on security procedures.”
The Pentagon confirmed with NewsNation that it is looking into the unidentified drones.
The Associated Press contributed to this report.