US president Donald Trump will make a state visit to the UK in the first week of June, Sky News understands.
The White House is expected to announce the details of the trip as soon as today.
It is anticipated that Mr Trump will go to Buckingham Place to meet the Queen and that he will also travel to France as part of commemorations for the 75th anniversary of the D-Day landings.
The visit will be almost a year since his last official visit to the UK, when he and First Lady Melania met the Queen at Windsor Castle, spending around 45 minutes together, instead of the scheduled 30 minutes.
Mr Trump later described the Queen, who was then 92, as a "tremendous woman" who had "really never made a mistake".
He had also spent time with Theresa May at the prime minister's country residence Chequers and at the Royal Military Academy Sandhurst where they watched a display of special forces from both the UK and the US.
At the time, he had sought to heal wounds inflicted by an explosive newspaper interview in which he had said Mrs May's Brexit plans would kill any trade deal with the US and that Boris Johnson would be a "great prime minister".