A baying mob of masked anarchists have marched on Boris Johnson's house and clashed with police while threatening to kill the new Foreign Secretary.

The gang of about 100 protesters assaulted officers, set off smoke bombs and chanted slogans outside the property in North London on Friday evening.

At least nine officers maintained a cordon outside the front door of the four-storey, £2.3 million home while protesters paraded a banner featuring Mr Johnson's face and the rope and blade of a guillotine.

The Foreign Secretary was not at home at the time but one protester remarked that if Boris were to return, he would 'probably be killed'.

New job: Foreign Secretary Boris Johnson. A gang of 100 anarchists marched on his London house

Mob: Anarchists let off smoke bombs outside Boris Johnson's home and chanted slogans outside the property

The protest was organised by Class War, a direct action group founded in 1982

A female protester was knocked over and cut her head. Enraged anarchists charged up the street after her assailant but were stopped by police

The protest was organised by Class War, a direct action group founded in 1982. It turned violent when a number of men, chanting their support for Mr Johnson, waded into the group. A female protester was knocked over and cut her head.

Enraged anarchists charged up the street after her assailant but were stopped by police. The mob then lashed out at the officers. More smoke bombs were set off and extra police drafted in.

An ambulance was called for the injured woman and the man responsible was arrested.

Two protesters were arrested for assaulting police.

The Foreign Secretary was not at home at the time but one protester remarked that if Boris were to return, he would 'probably be killed'

An ambulance was called for the injured woman and the man responsible was arrested. Two protesters were arrested for assaulting police