The White House will announce details soon of President Donald Trump's proposed visit to the UK, amid growing expectation he will come to London early in the new year to open the new US Embassy.
There was no confirmation from London or Washington of reports that Mr Trump told Theresa May his plans in a phone call on Tuesday evening.
Mrs May's offer of a state visit this year was put on hold amid fears of demonstrations against the US president.
But there has been widespread speculation that he could open the embassy in Vauxhall on a more low-profile working visit, which would not involve a meeting with the Queen.
Neither Downing Street nor the White House made any mention of a discussion of a possible visit in their official accounts of Tuesday's phone call.
Asked whether the possibility of a visit to the UK had been discussed, White House spokeswoman Sarah Huckabee Sanders told a Washington press conference: