UK Prime Minister Theresa May has told President Donald Trump his tweet about Democratic congresswomen was “completely unacceptable.”

The U.S. president sparked fresh anger and accusations of racism when he ranted about the four Democrats over the weekend.

Trump said “Progressive Democrat” politicians who had criticized him should “go back and help fix the totally broken and crime infested places from which they came.”

Trump appeared to be referring to Alexandria Ocasio-Cortez of New York, Ilhan Omar of Minnesota, Ayanna Pressley of Massachusetts, and Rashida Tlaib of Michigan.

A Downing Street spokesman said today: “The prime minister’s view is that the language used to refer to these women was completely unacceptable.”