The UK has recorded reported 146,390 new Covid cases and 313 deaths, bringing the total number of people who have died since the pandemic began to 150,000.
The number of cases is down from the 178,250 recorded on Friday, but deaths have increased from 229.
Some 1.227 million people tested positive for Covid during the past week, 10.6 per cent more than the week before, while the number of deaths was up 38.3 per cent on a week before, at 1,271.
The number of deaths recorded within 28 days of a positive test now stands at 150,057.
After it was announced the country had reached the grim deaths milestone, the Department of Health and Social Care (Dhsc) urged people to get their booster jabs.
In a statement the (Dhsc) said: “Every death from this virus is a tragedy and our sympathies are with everyone who has lost loved ones.
“We are thankful for the collective national effort and the hard work of frontline health and social care staff and volunteers for administering vaccines to tens of millions of people and keeping people safe. Their tireless efforts have saved thousands of lives.
“But the pandemic is not over. That’s why it is so important everyone continues to play their part, by coming forward to get boosted now, or getting a first or second jab, if you have yet to do so.”
The publishing of the latest figures comes after a Government adviser said the North East and North West of England are seeing the most “concerning” rates of the Omicron variant.
The five UK areas with the biggest week-on-week rises in Covid case rates are Middlesbrough (748.8 to 2,651.4), Copeland (1,731.3 to 3,525.8) and Redcar & Cleveland (846.8 to 2,564.3), according to official figures.
Dr Mike Tildesley, from the University of Warwick and a member of the Scientific Pandemic Influenza Modelling group (Spi-M) highlighted these regions, along with the Midlands, as areas of concern.
He said that cases were “slowing down” in London but he warned it would take around a fortnight to see if this decline in the capital, which has been the epicentre of the outbreak.
Dr Tildesley said: “Most other parts of the country are about two to three weeks behind where London is in their epidemic profile,” he told Times Radio.
“Particularly concerning is the North East and the North West – if you look at hospital admissions in those two regions they are going up, also the Midlands, where I live, that’s also a little bit concerning, so it is a worry.”
The armed forces have stepped in to fill a staffing crisis in the NHS caused by the rapid spread of the variant.
NHS England data shows 39,142 NHS staff at hospital trusts in England were absent for Covid-19 reasons on January 2, up 59 per cent on the previous week (24,632) and more than three times the number at the start of December (12,508).
According to the Health Service Journal (HSJ), staff absences for any reason across the entire NHS, including mental health trusts and other areas, may be as high as 120,000.
In total, there are around 9,300 armed forces personnel available on standby.
Additional reporting by Press Association.