Almost 2,000 workers at the United Kingdom's biggest container port are expected to launch an eight-day strike Sunday over a pay dispute, as thousands of rail workers continued a summer of strikes to seek better pay and job security.

Britain's Metropolitan Police told Prime Minister Boris Johnson he faced no further action over lockdown-breaching gatherings at his official residence and other government sites, after the force said Thursday it has concluded its investigation into politicians' parties that violated the country's coronavirus restrictions.

The prevalence of COVID-19 in the U.K. has reached record levels, with about one in 13 people estimated to be infected with the virus in the past week, according to the latest figures from Britain's official statistics agency.