Eight police officers have been injured as anti-lockdown protests in central London turned violent.
Demonstrators hurled bottles as officers attempted to disperse the crowds in Hyde Park on Saturday evening, the city's police force said.
Photographs posted on social media show a female police officer bleeding from a cut to her head, while another suffered a similar wound on his forehead.
Two officers were taken to hospital, although their injuries are not believed to be serious, police said.
The protests, which also took place on Oxford Street, London's central shopping area, come almost two weeks after Covid-19 lockdown restrictions were eased.
Five people were arrested for offences including assault on police and remain in custody, police said.
1/2 - Eight officers were injured as they worked to disperse crowds in Hyde Park this evening.
Missiles including bottles were thrown in small pockets of disorder. Two officers were taken to hospital. Thankfully, they are not believed to be seriously injured.Advertisement— Metropolitan Police Events (@MetPoliceEvents) April 24, 2021
John Apter, national chairman of the Police Federation of England and Wales, tweeted: “These officers are just doing a job, they’re somebody’s son, daughter they’re mums and dads.
“To be targeted in the way they are says a lot about the society we’ve become.
“I will continue to do my best to support them but I need Government to do more, much more.”
Demonstrators held banners with messages such as “Covid-19 Vaccine Holocaust”, and “No To Vaccine Passports.”
Another banner read: “You don’t need proof to know truth.”
Shoppers flocked to high streets and drinkers downed pints as coronavirus restrictions were lifted in England on April 12th.
British prime minister Boris Johnson urged the nation to “behave responsibly” as indoor gyms, swimming pools, nail salons and zoos welcomed customers back.
A UK government review into “Covid status certification” said they could “potentially play a role” in settings such as theatres, nightclubs and mass events, and might also be used in pubs and restaurants to reduce social distancing restrictions.
The documents would record – either on a health service app or a paper certificate – whether someone has had a vaccine, a recent negative coronavirus test or natural immunity, having recovered from Covid-19.