LONDON (AP) — A British school has canceled a talk by an editor of the U.S. right-wing website Breitbart News, citing safety concerns and the threat of demonstrations at the school.

Milo Yiannopoulos was due to address students at his former school, Simon Langton Grammar School for Boys in southern England, on Tuesday. The school said it pulled the talk after it was contacted by the Department of Education's counter-terrorism officials.

Yiannopoulos was banned by Twitter in July for abusive comments. He is a senior editor of Breitbart, an "alt-right" website backing Donald Trump. The alt-right is a loose group espousing a provocative and reactionary strain of conservatism.

The school said many of its students and parents supported its attempt to bring in controversial speakers, and that it remained committed to free speech.