Anderson, pastor of the Faithful Word Baptist Church in Arizona, had previously been barred from South Africa and from the UK because of his homophobic views. He had notoriously welcomed the killing of 50 people at a gay nightclub in Orlando, Florida, saying there were now "50 less paedophiles in this world".

President Ian Khama said he had ordered Anderson's immediate arrest and deportation after the pastor said in an interview with a local radio station in the capital Gabarone on Tuesday morning that gays and lesbians should be killed.

"He was picked up at the radio station. I said they should pick him up and show him out of the country," Khama said in an interview. "We don't want hate speech in this country. Let him do it in his own country." ...