British actor and political activist Laurence Fox speaks to police as he takes part in an anti-lockdown and anti-vaccine demonstration in Downing Street, amid the coronavirus disease (COVID-19) pandemic, London, Britain, June 14, 2021.

Anti-lockdown and anti-vaccine demonstrators take part in a protest in Downing Street, amid the coronavirus disease (COVID-19) pandemic, London, Britain, June 14, 2021.

People gather during an anti-lockdown and anti-vaccine protest, amid the coronavirus disease (COVID-19) pandemic, near the Houses of Parliament, London, Britain, June 14, 2021.

Demonstrators gather in front of police during an anti-lockdown and anti-vaccine protest, amid the coronavirus disease (COVID-19) pandemic, outside the Houses of Parliament, London, Britain, June 14, 2021.

An anti-lockdown and anti-vaccine demonstrator speaks to police as he takes part in a protest in Downing Street, amid the coronavirus disease (COVID-19) pandemic, London, Britain, June 14, 2021.

Anti-lockdown and anti-vaccine demonstrators take part in a protest in Downing Street, amid the coronavirus disease (COVID-19) pandemic, London, Britain, June 14, 2021.

Anti-lockdown and anti-vaccine demonstrators gather at the gates of the Houses of Parliament during a protest, amid the coronavirus disease (COVID-19) pandemic, London, Britain, June 14, 2021.

Police officers stand guard during an anti-lockdown and anti-vaccine protest, amid the coronavirus disease (COVID-19) pandemic, outside Downing Street, London, Britain, June 14, 2021.

Activist Piers Corbyn takes part in an anti-lockdown and anti-vaccine protest in Downing Street, amid the coronavirus disease (COVID-19) pandemic, London, Britain, June 14, 2021.

An anti-lockdown and anti-vaccine demonstrator holds a sign as she takes part in a protest in Downing Street, amid the coronavirus disease (COVID-19) pandemic, London, Britain, June 14, 2021.

People gather during an anti-lockdown and anti-vaccine protest, amid the coronavirus disease (COVID-19) pandemic, near the Houses of Parliament, London, Britain, June 14, 2021.

Police officers stand guard during an anti-lockdown and anti-vaccine protest, amid the coronavirus disease (COVID-19) pandemic, outside Downing Street, London, Britain, June 14, 2021.

An anti-lockdown and anti-vaccine demonstrator holds a sign as she takes part in a protest in Downing Street, amid the coronavirus disease (COVID-19) pandemic, London, Britain, June 14, 2021.

Demonstrators gather during an anti-lockdown and anti-vaccine protest, amid the coronavirus disease (COVID-19) pandemic, outside the Houses of Parliament, London, Britain, June 14, 2021.

A demonstrator gestures towards police during an anti-lockdown and anti-vaccine protest, amid the coronavirus disease (COVID-19) pandemic, outside the Houses of Parliament, London, Britain, June 14, 2021.

A demonstrator uses a megaphone during an anti-lockdown and anti-vaccine protest, amid the coronavirus disease (COVID-19) pandemic, near the Houses of Parliament, London, Britain, June 14, 2021.

A woman holds a placard during an anti-lockdown and anti-vaccine protest, amid the coronavirus disease (COVID-19) pandemic, near the Houses of Parliament, London, Britain, June 14, 2021.

An anti-lockdown and anti-vaccine demonstrator holds up an umbrella as she takes part in a protest in Downing Street, amid the coronavirus disease (COVID-19) pandemic, London, Britain, June 14, 2021.

Police officers walk down Whitehall street during an anti-lockdown and anti-vaccine protest, amid the coronavirus disease (COVID-19) pandemic, in London, Britain, June 14, 2021.

Police officers stand guard during an anti-lockdown and anti-vaccine protest, amid the coronavirus disease (COVID-19) pandemic, outside Downing Street, London, Britain, June 14, 2021.