Muslim worshippers and far-right activists clashed at a protest outside a mosque in east London.
Video footage of the clash shared on social media showed Britain First protesters being driven away from the East London Mosque amid scuffles in the street, shortly after they had assembled.
In one clip, a man can be seen fly-kicking the retreating protesters.
Another man can be heard shouting “come on!” and several police officers were pictured at the scene.
The fight broke out after members of the right wing group attempted to hold an anti-mosque demonstration outside the building in Whitechapel Road, Whitechapel, on Saturday afternoon.
The group had arrived at the building with union flags and a large banner saying “no more mosques”.
The mosque tweeted that members of its community were “provoked and attacked” by the protesters.
Britain First claimed on social media that it was set upon by “around 150 aggressive Muslims” while trying to stage a peaceful demonstration.
Two people were arrested after police were called at about 3.30pm.
A Metropolitan Police spokesman said, “Police were called following reports of a protest outside the East London Mosque on Whitechapel Road.
“Officers attended and spoke with the group. A short time later, a counter-protest commenced. Two men were subsequently arrested.”
One man was held on suspicion of assault occasioning actual bodily harm. Another was arrested on suspicion of going equipped to cause criminal damage.