The United States withdrew its B-1 bombers from RAF Fairford in England and returned them to the United States because of security concerns following arrests near the base over suspected preparations for a terrorist attack. Reports differed on the number withdrawn, giving either 10 or 12. Five British men were arrested near the base, and a later report said another suspect was also arrested. One report said US media linked a new threat to Iran, while British Prime Minister Burnham and President Trump believed Iran was behind the alleged plot.