The number of UK coronavirus deaths has risen to 1,808, officials have confirmed.
Yesterday the number of deaths stood at 1,415 and the increase of 393 in the last 24 hours is more than double the increase of 180 across the previous day.
Today's figures include people who died in hospitals, but do not those who passed away in their homes.
The tragic update comes hours after new figures revealed an additional 40 deaths which had previously not been included in the country's death toll.
A further 367 patients have died in England, Public Health England confirmed. This takes the total for England alone to 1,651.
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NHS England said those who died were all in hospital and their ages ranged from 19 to 98.
All but 28 of the patients had underlying health conditions. The 28 who did not were aged between 19 and 91.
Their families have been informed.
The Department of Health has also confirmed that the UK now has 25,150 cases of coronavirus.
This is up from 22,141 yesterday - an increase of 3,009.
As of 9am on March 31, a total of 143,186 people have been tested.
Scotland's coronavirus death toll has risen to 60 after 13 more were confirmed earlier today.
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First Minister Nicola Sturgeon also reported a big rise in the number of cases of 430, taking the total to 1,993.
In Northern Ireland 28 people are known to have died from Covid-19, up six on one day ago.
And 69 people have died in Wales, after seven more fatalities were reported today.
Public Health Wales said there were 112 new confirmed cases of coronavirus, taking the total to 1,563, though it said the true number was likely to be higher.
Dr Giri Shankar, incident director for the Covid-19 outbreak response at Public Health Wales, said: "Seven further deaths have been reported to us of people who had tested positive for novel coronavirus, taking the number of deaths in Wales to 69.
"We offer our condolences to families and friends affected, and we ask those reporting on the situation to respect patient confidentiality."
Data released today by the Office for National Statistics shows 210 cases where Covid-19 is mentioned on death certificates - 23% higher than the 170 coronavirus-related deaths previously announced up to that point.
If this pattern has been replicated in the 11 days since, the true death toll could be significantly higher than the 1,408 announced yesterday by the Department for Health and Social Care.
Number 10 hinted that the Prime Minister is frustrated by the slow progress on testing as it urged NHS trusts to use spare tests on staff.
Fewer than 10,000 tests per day are being carried out, according to the latest figures from Public Health England, despite Health Secretary Matt Hancock saying a target of 10,000 per day had been hit.
Asked whether Mr Johnson was frustrated by the slow progress on testing, the PM's spokesman said: "It's absolutely an important issue and the Prime Minister and ministers want as much progress to be made on this as possible.
"We've been very clear that where there is additional capacity in the system that should be being used for NHS workers."
