England’s third national lockdown has legally come into force, with MPs set to vote retrospectively on it later.
The measures, which include a stay-at-home order and the closure of schools to most pupils, were announced by the prime minister on Monday.
All of the UK is now under strict virus curbs, with Wales, Northern Ireland and most of Scotland also in lockdown.
On Tuesday the number of new daily confirmed cases of Covid in the UK topped 60,000 for the first time.
And it is thought one in 50 people in private households in England had the virus last week – rising to one in 30 in London.
Figures from the Office for National Statistics also suggested more than one million people in England had Covid between 27 December and 2 January.
At a Downing Street news conference on Tuesday, Prime Minister Boris Johnson said he had “no choice” but to impose the new lockdown, with the number of patients in hospitals 40% higher than in the first peak.
He would not guarantee that all children would be back in school before the summer holidays but insisted he was full of “optimism and fundamental hope” that things would be different in the spring.