At least 50 people have been arrested and three police officers hospitalized during the anti-capitalist ‘’Million Mask March,’’ which is a yearly held event that gathers people in major city centers in London.
Many demonstrators wore the "V for Vendetta" mask made famous by the movie with the same name.
Demonstrators fought and threw fireworks and bottles at police, injured people were tended to by the emergency crews as police tried to contain the demonstrators
Many carried placards that read, "One solution: Revolution," with others screaming "Whose streets? Our streets."
Some protestors managed to break free from the main route of the protest and set a police car ablaze, then started heading towards Buckingham Palace and Green Park, where they threw missiles such as cones and fireworks at police horses.
— Sally Hayden (@sallyhayd) 5 October 2015
Police started arresting people soon after the march began. Three officers were taken to the hospital with injuries, their injuries are not life-threatening.
Parliament Square was barricaded with wire fences and large crowds were at times controlled with kettling techniques, while police helicopters circled above.
Metropolitan Police Service Commander BJ Harrington said, "Officers have been hospitalised, a police horse suffered injuries and a police car was criminally damaged during the course of the protest which is completely unacceptable. I praise the professionalism and restraint that officers have shown in the face of hostile provocation and enabled the policing operation to pass without major incidents."
"We will bring those responsible for the criminality to face justice." he added.
The worldwide annual event is organised by the anarchic hacking collective Anonymous.
— Sattar Saeedi (@SattarSaeedi) 6 October 2015
A statement posted on the Facebook page for the London protests said, "The police are not your friends, this goes for police liaison officers too, they're simply a 'friendly face' who collect intelligence."
"Keep an eye out for your comrades and police tactics that will limit movement, the hive mind should stay vigilant."
Approximately 20,000 people said on Facebook that they would take part in the protests.
Last year, 10 people were arrested over violence towards officers and public buildings were damaged.