Angry Brexiteers shout "boo" at a huge police presence walking past as a projectile flies out of the crowd and into the group of cops in London on March 29 at 9pm.

Footage shows the agitated March to Leave protesters shaking barriers and rattling fences. At one stage a barrier is lifted clear off the ground and then angrily thrown back down.

The atmosphere in the footage is clearly very tense as one protester says "This is a peaceful protest!"

There are repeated chants of "Shame on you!" from the mob with profanity used throughout.