Far-Right Protesters Interrupt London Mayor Sadiq Khan

A group of far-right, pro-Trump and pro-Brexit protesters interrupted a speech by London Mayor Sadiq Khan — but he took it in stride.

The protesters are  reportedly part of a  newly formed group called the White Pendragons.

They interrupted Khan's speech to the Fabian Society about gender equality.

One protester announced they were there to perform a citizen's arrest of the London mayor.

That didn't pan out.

Police escorted them out of the venue, and Khan poked fun at the whole thing.  SEE MORE: Trump Cancels Visit To London, Blames Obama For 'Bad' Embassy Deal He said, "On the plus side, I wasn't served with a P45." That's a reference to an October speech by U.K.

Prime Minister Theresa May in which a man  rushed the stage  to hand her a fake government pink slip dismissing her from her job.

Khan also said he was glad to be there despite the actions of "what some would call very stable geniuses" — a not-so-subtle jab at U.S.

President Donald Trump, who tweeted recently that he's  "a very stable genius."