NOTE: This event has been postponed until 6.30pm GMT.

Boris Johnson holds a news conference to discuss new restrictions to combat Covid-19 with England’s chief medical officer, Chris Whitty, and the government’s chief scientific adviser, Sir Patrick Vallance. The UK prime minister is considering imposing a new month-long national lockdown in England next week after scientists said the coronavirus was spreading faster than their worst predictions, a government official said.

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