It’s a jump of 54 from Sunday’s death toll of 281.
A further 46 patients died in England, with four in Scotland and four in Wales.
Overall, there have been 303 deaths in England, 16 in Wales, 14 in Scotland and two in Northern Ireland.
NHS England said in a statement on Monday afternoon: “A further 46 people who tested positive for the coronavirus (COVID-19) have died, bringing the total number of confirmed reported deaths in England to 303.
“Patients were aged between 47 and 105 years old and all had underlying health conditions.
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“Their families have been informed.”
The patients in England died at hospitals run by the following NHS Trusts:
Luton and Dunstable University Hospital NHS Foundation Trust: 1
Princess Alexandra Hospital NHS Trust: 1
West Hertfordshire Hospitals NHS Trust: 1
St Georges University Hospitals NHS Foundation Trust: 2
Lewisham and Greenwich NHS Trust: 2
Imperial College Healthcare NHS Trust: 1
Kingston Hospital NHS Foundation Trust: 1
University College London Hospital NHS Trust: 2
Royal Free London NHS Trust: 4
Barts Healthcare NHS Trust: 1
Guys and St Thomas’ NHS Trust: 2
North Middlesex University Hospital NHS Trust: 1
Epsom and St. Helier NHS Trust: 3
Worcester Acute Hospitals NHS Trust: 1
Royal Wolverhampton NHS Trust: 2
The Dudley Group of Hospitals NHS Trust: 1
Shrewsbury and Telford NHS Trust: 1
South Warwickshire NHS Trust: 1
Newcastle Upon Tyne Hospitals NHS Foundation Trust: 3
Sunderland and South Tyneside NHS Foundation Trust: 2
Tameside & Glossop Integrated Care NHS Foundation Trust: 4
Bolton NHS Foundation Trust: 1
Salford Royal NHS Foundation Trust: 3
Wirral University Teaching Hospital NHS Foundation Trust: 1
Hampshire Hospitals NHS Foundation Trust: 2
Royal Cornwall Hospital NHS Trust: 2
The 54 UK deaths announced on Monday marked the second biggest day-on-day increase since the first death on March 5.
The biggest jump was 56, from 177 to 233 between Friday and Saturday.
The latest increase in deaths came on a day when a number of companies – from Next to McDonald’s – announced the indefinite closure of their high street stores and restaurants.
Meanwhile, the government’s emergency coronavirus bill started to move through Parliament.
Opening the second reading of the bill in the House of Commons, health secretary Matt Hancock said: “Coronavirus is the most serious public health emergency that has faced the world in this century.
“We are all targets, but the disease reserves its full cruelty for the weakest and the most vulnerable.
“And to defeat it we are proposing extraordinary measures of the kind never seen before in peacetime. Our goal is to protect life and to protect every part of the NHS.
“And this Bill, jointly agreed with all four UK governments, gives us the power to fight the virus with everything we’ve got.”