Tommy Robinson's 'Unite the Kingdom' rally sees 150,000 march through London - Met Police says 25 arrested

"It is not possible for any more people to get into Bridge Street, Parliament Street or Whitehall," the Met Police said on social media as thousands marched through Westminster.

"We’re working with organisers to provide exit routes for the crowds.

"We’d ask people to follow the organisers’ calls to remain calm."

Later, the Met said at least 25 people were arrested and 26 police officers were injured - with four seriously hurt.

"A number of officers have been assaulted," it said.

The force added that its officers were "having to intervene in multiple locations" to stop protesters from accessing "sterile areas" between the Tommy Robinson march and a counter-protest organised by Stand Up To Racism, which saw 5,000 protesters carry out a separate demonstration.

Police said when protesters attempted to enter the sterile area on Whitehall "officers were attacked with projectiles".

"(They) have had to use force to avoid their cordon being breached," the Met added.

Roughly 1,600 officers were deployed on Saturday to deal with the rally and counter-protest - as well as a number of Premier League and EFL matches in the capital, three of which saw London teams face each other.

According to the Met, 500 officers were brought in from other forces, and around 1,000 will be "responsible for ensuring that two demonstrations in central London take place safely".

The "Unite the Kingdom" march began at 1pm and headed towards Whitehall where a rally took place.

Tommy Robinson labelled the rally the UK's biggest free speech festival.

He posted on social media that it "wasn't a time for riots".

"It's not a time for violence," he added. "It's a time where you come and you stand proudly for your country.

"This is an imperative message and an important message: we have to control ourselves."

Speaking to crowds via video-link, Elon Musk warned of escalating violence in the wake of Charlie Kirk's shooting.

"There is so much violence on the left, with our friend Kirk getting murdered in cold blood this week and people on the left celebrating it openly," Mr Musk said.

"The left is the party of murder and celebrating murder. I mean, let that sink in for a minute, that's who we're dealing with here."

The Tesla tycoon also demanded a change of Government in Britain, warning crowds that "violence is coming".

"you either fight back or you die," Mr Musk continued.

Other speakers included right-wing French politician Eric Zemmour, Danish People's Party leader Morten Messerschmidt, Petr Bystron of the right-wing Alternative for Germany party, Polish MEP Dominik Tarczynski, Belgian activist Filip Dewinter, and Mayor of London challenger Ant Middleton.

At about 4.30pm, the Met said it continued to "see significant aggression directed at officers by Unite the Kingdom protesters".

"We have deployed additional officers with protective equipment in multiple locations, supported by police horses, to deal with the disorder," the Met added.

The Commander in charge of the public order policing operation in London, Clair Haynes, said prior to the rally that the Met was "used to delivering the sort of complex and large-scale policing operation that is required to keep the public safe".

"We have a detailed plan to do so on Saturday," she said prior to the rally," she said.

"The main focus of the operation is on the two protests in central London. We will approach them as we do any other protests, policing without fear or favour, ensuring people can exercise their lawful rights, but being robust in dealing with incidents or offences should they occur."