A masked mob of anarchists clashed with police as they swarmed on Boris Johnson's home during a protest.

Dozens of protesters set off smoke bombs and scuffled with officers guarding the new Foreign Secretary's Islington house during the disorder.

Anarchist group Class War, which organised the protest, had told supporters to bring "pitchforks, flaming torches and incandescent anger" in a post promoting the event on its website.

It read: "Boris, our senior diplomat, [is] the man whole stole our future. Now we really are all f*****.

"Do we just grin and bear it, or do we grin and fight back back?"

Scotland Yard said three men were arrested during the angry clashes on Friday evening.

Mr Johnson was reportedly out at the time. But one protester told the Mail on Sunday that had he been home he would "probably be killed".

Several police officers were waiting for the protesters when they reached Mr Johnson's home shortly after 8pm. In pictures they are seen forming a human barricade outside his front door.

A Metropolitan police spokesman said three men were arrested following the clashes.

Two were held on suspicion of assaulting a police officer. Another was detained on suspicion of causing actual bodily harm.

The spokesman said: "We were aware of a planned demonstration due to take place.

"An appropriate policing plan was put in place."