Another 413 people died from coronavirus in UK hospitals, the lowest total on a day since March 31.
The government said deaths in the 24 hours until 9:00 a.m. brought the number of hospital deaths to 20,732.
Although the number of deaths recorded is still lower at weekends, health officials hope the latest count is part of a downward trend.
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A total of 152,840 people have now tested positive for Covid-19 in the UK, including 4,463 in the past 24 hours.
Professor James Naismith, director of the Rosalind Franklin Institute and professor at the University of Oxford, said: “Any reduction in the deaths announced is welcome; it seems likely that the normal weekend problem will explain the unusually lower number today.
“The number of new infections remains in the thousands, but social distancing works. The R value has not gone to zero, when it is less than 1, the virus spreads but with new infections decreasing every day.
“As testing capacity improves, we should do better to get a true measure of the number of people infected.
“The thousands of new infections identified today do not suggest that the virus is still spreading quickly – rather, they suggest that we have had far more infections than we identified before the closure.
“So many viral infections will take time to die out. Unfortunately, the virus takes us on an express elevator to the top of the summit, but we have to go down the stairs. “
Foreign Minister Dominic Raab on Sunday rejected renewed calls from business leaders for a quick easing of the British foreclosure, saying the epidemic was still “delicate and dangerous”.
He said authorities were also considering possible checks at sea and at the airport, with passengers arriving in the UK having to quarantine for 14 days.
England has suffered a total of 18,419 deaths from coronavirus, according to government figures; Scotland 1,231; Wales 788 and Northern Ireland 294.
London still has the highest number of deaths, followed by the north-west and the south-east.