At least 13 protesters participating in an anti-lockdown demonstration in London have been arrested, the British Metropolitan Police told CNN on Saturday.

Dozens of people who had gathered in Hyde Park to protest against the government’s emergency coronavirus restrictions were met by police officers attempting to control the demonstration.

In videos shared online, protesters were heard chanting “shame on you” as the un-masked police officers ask people move people along.

Some context: The protests come as the country prepares to enter its ninth week of lockdown on Monday, with a total of at least 34,466 deaths recorded across the UK so far.

In videos shared on social media, Piers Corbyn – the brother of former UK opposition leader Jeremy Corbyn – was seen warning demonstrators of the government’s “lies” about the deadly virus.

“They’re telling us there’s a pandemic. It’s a pack of lies to brainwash you and keep you in order,” Piers Corbyn said.

In the crowd, one protester was seen holding a sign calling on the government to “stop violating our human rights,” while another sign read: “I will not be masked, tested, tracked or poisoned. This will not be my new normal.”