Seven police officers have suffered injuries after yobs at an illegal lockdown street party pelted them with bottles.
Footage captures huge crowds forcing Met Police officers back from the block party on the estate in White City, west London, on Friday night.
Metropolitan Police said a number of people gathered this evening at an unlicensed music event and, in the clip, dozens of officers carrying shields could be seen running and shouting as crowds chase them away.
Police later confirmed the injuries and condemned the behaviour.
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Deputy Assistant Commissioner Laurence Taylor said seven officers had sustained injuries as a result of the clashes.
"Officers have responded to residents complaining about a large gathering, noise, anti-social behaviour and violence," he said.
"These gatherings are illegal and also pose a risk to public health.
"The violence shown towards officers this evening was totally unacceptable and we will not tolerate it in any form. Officers encountered bricks and other missiles being thrown at them.
"Our robust police response demonstrated that we will police incidents like these firmly and stop those intent on causing harm or disruption to our communities."
"These boys retreating," a man filming the scenes says as the police back off across the road with a crowd advancing on them.
The crowd of young people films as the police line moves back, then they turn and head back to the party.
More footage from another angle earlier in the evening shows a large crowd in a car park at an estate as music blares through a soundsystem.
Several people reported seeing a helicopter over White City and Shepherd's Bush area toninght.
Large gatherings remain against the government's coronavirus social distancing guidelines.
Authorities up and down the country have been grappling with illicit raves and lockdown parties in recent weeks.
Police were also attacked at a party in neighbouring borough Kensington & Chelsea last week.
Officers were injured as they tried to break up a violent street party in Notting Hill.
The drama in the capital tonight comes just hours ahead of the lockdown easing in England allowing pubs to reopen.
There are fears so-called 'Super Saturday' July 4 lockdown changes will lead to chaos as Brits return to pubs, bars and restaurants.
Downing Street earlier today said boozers would be allowed to open from 6am.
Hammersmith and Fulham Police earlier today warned the entire borough has put under a Public Spaces Protection Order (PSPO), a temporary measure allowing authorities to ban certain behaviours.
The force said earlier: "This legislation is used to tackle alcohol-related anti-social behaviour and give police and local authority powers to seize alcohol and issue fines."
The force also had a special stop and search order in place today for much of the borough, across Shepherd's Bush, White City, Acton and Hammersmith.
H&F Police tweeted earlier: "This is due to information received relating to planned Unlicensed Music / BBQ events taking place within the locations.
"Intelligence suggests that these events will be attended by West and South gang members. This has previously led to violence and disorder."
