The picadilly kettle has been broken and the crowd has moved to Duke Street, off Regent Street, round the back of Fortnum and Mason.
Riot police are outnumbered by protesters and they are trying to increase their numbers. Protesters continually break through police lines, releasing red smoke, throwing missiles and clashing with police officers.
A red and black banner has been hung from the second floor of Fortnum and Mason.
Police reportedly have no control over the crowd.
Beth Bridewell, a London Student Journalist and student at Royal Holloway, said: “I was pushed into a wall by the police before being trod on by protesters and then pushed by police again. At which point I just ran out of the way. On protester threw a stick at a policeman that didn’t have a helmet on and it appeared to cut his face.”
Music is playing through a large PA system brought in by the protesters.