Britain's Labour Party leader Keir Starmer and his wife Victoria walk to a polling station during local elections, in London, Britain May 6, 2021. REUTERS/Tom Nicholson

A man walks with a dog past a polling station during local elections in Oxford, Britain May 6, 2021. REUTERS/Peter Cziborra

A dog is seen outside a polling station during local elections in London, Britain May 6, 2021. REUTERS/Tom Nicholson

A woman sanitizes her hands as she leaves a polling station during local elections in Oxford, Britain May 6, 2021. REUTERS/Peter Cziborra

A man leaves as people queue outside a polling station during local elections in Oxford, Britain May 6, 2021. REUTERS/Peter Cziborra

Britain's Prime Minister Boris Johnson and partner Carrie Symonds leave Westminster polling station after voting, in London, Britain May 6, 2021. REUTERS/Henry Nicholls

Britain's Prime Minister Boris Johnson puts on a protective mask as he arrives at Westminster polling station to vote, in London, Britain May 6, 2021. REUTERS/Henry Nicholls

Signs are seen in a window of Ace Launderette, which is being used as a polling station during local elections in Oxford, Britain May 6, 2021. REUTERS/Peter Cziborra

A ballot box and washing machines are seen inside Ace Launderette, which is being used as a polling station during local elections in Oxford, Britain May 6, 2021. REUTERS/Peter Cziborra

Britain's Prime Minister Boris Johnson and partner Carrie Symonds walk to Westminster polling station to vote, in London, Britain May 6, 2021. REUTERS/Henry Nicholls

Britain's Prime Minister Boris Johnson and partner Carrie Symonds arrive at a Westminster polling station to vote, in London, Britain May 6, 2021. REUTERS/Henry Nicholls

Britain's Prime Minister Boris Johnson and partner Carrie Symonds leave Westminster polling station after voting, in London, Britain May 6, 2021. REUTERS/Henry Nicholls

Britain's Prime Minister Boris Johnson and partner Carrie Symonds leave Westminster polling station to vote, in London, Britain May 6, 2021. REUTERS/Henry Nicholls

Britain's Prime Minister Boris Johnson and partner Carrie Symonds leave Westminster polling station after voting, in London, Britain May 6, 2021. REUTERS/Henry Nicholls REFILE - CORRECTING ACTION

A view of a polling station sign at a golf course during local elections in Bletchley, Britain, May 6, 2021. REUTERS/Andrew Boyers

A man walks his dog past a polling station at a church during local elections in Bletchley, Britain, May 6, 2021. REUTERS/Andrew Boyers

Britain's Prime Minister Boris Johnson and partner Carrie Symonds leave Westminster polling station after voting, in London, Britain May 6, 2021. REUTERS/Henry Nicholls REFILE - CORRECTING ACTION

Britain's Prime Minister Boris Johnson and partner Carrie Symonds arrive at a Westminster polling station to vote, in London, Britain May 6, 2021. REUTERS/Henry Nicholls

Britain's Prime Minister Boris Johnson and partner Carrie Symonds arrive at a Westminster polling station to vote, in London, Britain May 6, 2021. REUTERS/Henry Nicholls

A woman hands in a postal vote outside a polling station at a church during local elections in Bletchley, Britain, May 6, 2021. REUTERS/Andrew Boyers

A view of a polling station at a church during local elections in Bletchley, Britain, May 6, 2021. REUTERS/Andrew Boyers

Britain's Prime Minister Boris Johnson and partner Carrie Symonds arrive at a Westminster polling station to vote, in London, Britain May 6, 2021. REUTERS/Henry Nicholls

Britain's Prime Minister Boris Johnson and partner Carrie Symonds arrive at the Methodist Central Hall to vote, in London, Britain May 6, 2021. REUTERS/Henry Nicholls

A voter enters a polling station during local elections in Blair Atholl, Scotland, Britain May 6, 2021. REUTERS/Russell Cheyne

A woman puts up a sign at a polling station during local elections in Pitlochry, Scotland, Britain May 6, 2021. REUTERS/Russell Cheyne

Ducks walk past a polling station during local elections in Blair Atholl, Scotland, Britain May 6, 2021. REUTERS/Russell Cheyne

Snow falls at a polling station during local elections in Blair Atholl, Scotland, Britain May 6, 2021. REUTERS/Russell Cheyne

A man is seen outside a polling station, in Ouston, Britain May 6, 2021. REUTERS/Lee Smith

A view of a polling station sign in Bletchley, Britain, May 6, 2021. REUTERS/Andrew Boyers

A voter enters a polling station during local elections in London, Britain May 6, 2021. REUTERS/Tom Nicholson

A view of a polling station at Rectory Cottages in Bletchley, Britain, May 6, 2021. REUTERS/Andrew Boyers

A sign points to a polling station at Rectory Cottages in Bletchley, Britain, May 6, 2021. REUTERS/Andrew Boyers

A man walks near a polling station sign in Westminster, London, Britain May 6, 2021. REUTERS/Henry Nicholls

A polling station sign is seen in Westminster, London, Britain May 6, 2021. REUTERS/Henry Nicholls

A woman jogs near a polling station sign in Westminster, London, Britain May 6, 2021. REUTERS/Henry Nicholls

Signs outside St Florence Village Hall, being used as a polling station during local elections, Tenby, Wales, Britain, May 6, 2021. REUTERS/Rebecca Naden

Signs outside St Florence Village Hall, being used as a polling station during local elections, Tenby, Wales, Britain, May 6, 2021. REUTERS/Rebecca Naden

Signs outside St Florence Village Hall, being used as a polling station during local elections, Tenby, Wales, Britain, May 6, 2021. REUTERS/Rebecca Naden

A polling station sign is seen in Westminster, London, Britain May 6, 2021. REUTERS/Henry Nicholls

A polling station sign is seen in Westminster, London, Britain May 6, 2021. REUTERS/Henry Nicholls

A woman walks past a polling station sign in Westminster, London, Britain May 6, 2021. REUTERS/Henry Nicholls

Bottles of hand sanitisers are seen at a voting station at Fulwell Mill ahead of local elections, amid the coronavirus disease (COVID-19) pandemic, in Sunderland, Britain May 6, 2021. REUTERS/Lee Smith

A polling station sign is seen in Westminster, London, Britain May 6, 2021. REUTERS/Henry Nicholls

A woman puts up signs advising voters to maintain social distancing at a voting station at Fulwell Mill ahead of local elections, amid the coronavirus disease (COVID-19) pandemic, in Sunderland, Britain May 6, 2021. REUTERS/Lee Smith

Signs pointing the way to a polling station and advising voters to maintain social distancing are seen at Fulwell Mill ahead of local elections, amid the coronavirus disease (COVID-19) pandemic, in Sunderland, Britain May 6, 2021. REUTERS/Lee Smith

A person sets up a polling station, in Manchester, Britain, May 6, 2021. REUTERS/Phil Noble

A polling station is set up at Fulwell Mill ahead of local elections, in Sunderland, Britain May 6, 2021. REUTERS/Lee Smith

A polling station is set up at Fulwell Mill ahead of local elections, in Sunderland, Britain May 6, 2021. REUTERS/Lee Smith

A person sets up a polling station, in Manchester, Britain, May 6, 2021. REUTERS/Phil Noble

People set up a polling station, in Manchester, Britain, May 6, 2021. REUTERS/Phil Noble

A polling station is set up at Fulwell Mill ahead of local elections, in Sunderland, Britain May 6, 2021. REUTERS/Lee Smith

A polling station is set up at Fulwell Mill ahead of local elections, in Sunderland, Britain May 6, 2021. REUTERS/Lee Smith

A man walks past people setting up a polling station at Fulwell Mill ahead of local elections, in Sunderland, Britain May 6, 2021. REUTERS/Lee Smith

Peru's former presidential candidate Veronika Mendoza addresses the media with Peru's presidential candidate socialist Pedro Castillo, who leads in the polls ahead of a run-off vote on June 6 against right-wing opponent Keiko Fujimori, in Lima, Peru May 5, 2021. The writings read "A true patriot in the government, The Profe Pedro Castillo, President" and "Free Peru." REUTERS/Alessandro Cinque

A team member of Peru's presidential candidate socialist Pedro Castillo, who leads in the polls ahead of a run-off vote on June 6 against right-wing opponent Keiko Fujimori, sits on an armchair before Castillo's news conference, in Lima, Peru May 5, 2021. REUTERS/Alessandro Cinque

A band of musicians wait for Peru's presidential candidate socialist Pedro Castillo, who leads in the polls ahead of a run-off vote on June 6 against right-wing opponent Keiko Fujimori, in Lima, Peru May 5, 2021. REUTERS/Alessandro Cinque

A man waits for Peru's presidential candidate socialist Pedro Castillo (not pictured), who leads in the polls ahead of a run-off vote on June 6 against right-wing opponent Keiko Fujimori, to arrive for a news conference, in Lima, Peru May 5, 2021. REUTERS/Alessandro Cinque

Supporters of Peru's presidential candidate socialist Pedro Castillo (not pictured), who leads in the polls ahead of a run-off vote on June 6 against right-wing opponent Keiko Fujimori, attend Castillo's news conference, in Lima, Peru May 5, 2021. REUTERS/Alessandro Cinque

A team member of Peru's presidential candidate socialist Pedro Castillo, who leads in the polls ahead of a run-off vote on June 6 against right-wing opponent Keiko Fujimori, poses for a photograph before Castillo's news conference, in Lima, Peru May 5, 2021. REUTERS/Alessandro Cinque

Peru's presidential candidate socialist Pedro Castillo, who leads in the polls ahead of a run-off vote on June 6 against right-wing opponent Keiko Fujimori, gestures as he addresses the media with former presidential candidate Veronika Mendoza, in Lima, Peru May 5, 2021. The writing reads "A true patriot in the government, The Profe Pedro Castillo, President" REUTERS/Alessandro Cinque