A US official has confirmed that all long-range bombers have been moved from their station in the United Kingdom back to their home bases in the United States. This move was made on Sunday in response to a new, unspecified threat.

The relocation comes after the British government made several arrests in connection with an alleged plot involving Iran. The plot was reportedly targeting the UK airbase where the US planes were stationed.

Further details about the threat and the arrests are available, including information about the alleged plot and the US official's statement to CNN.