LONDON (AP) — The mayor of London has added his voice to calls for President Donald Trump's state visit to Britain to be canceled over his retweets of a British far-right group.

Sadiq Khan says Trump has promoted "a vile, extremist group" and an official visit by him to Britain "would not be welcomed."

Trump's retweeting of anti-Muslim videos from far-right group Britain First has been widely condemned in Britain. Prime Minister Theresa May's official spokesman said the president was wrong to have done it.

In response, Trump urged May to focus on "the destructive Radical Islamic Terrorism that is taking place within the United Kingdom," rather than on him.

Downing St. and the White House both say a state visit by Trump is planned, but no date has been set.