Ten patients who tested positive for the coronavirus have died, bringing the death toll in the UK to 21, NHS England said.
A number of the patients, who were over 60, had underlying health conditions, NHS England said.
The 10 patients were being cared for by nine trusts including Buckinghamshire, Sandwell & West Birmingham, Wolverhampton, Leicester, Barts, London, North Middlesex, and Chester.
All 10 people revealed on Saturday as having died after testing positive for Covid-19 were “in the at-risk groups”, chief medical officer for England, Professor Chris Whitty, said.
Prof Whitty said: “I understand this increase in the number of deaths linked to Covid-19 will be a cause for concern for many. The public should know every measure we are taking is seeking to save lives and protect the most vulnerable.
“Every single one of us has a role to play in achieving this. If you have a new continuous cough or high temperature, please stay at home for seven days. I also encourage everyone to be washing their hands for 20 seconds regularly.
“I offer my sincere condolences to the families and friends who have received this difficult news. I ask that their privacy is respected at this time.”
The UK is dealing with a rising number of cases of the illness and this announcement sees the death toll in the UK double.
On Friday, the number of positive cases was 798 and there was a death toll of 11.