An urgent appeal for specialist help caring for coronavirus patients has been made by the health board running Wales’ largest hospital.
Cardiff and Vale health board, which runs University Hospital of Wales, put out a plea for assistance in its critical care department on Boxing Day.
On Sunday, it said staffing has been challenging but the position had improved.
Welsh Government data shows it ran out of intensive care beds on 20 December.
A day later, First Minister Mark Drakeford said NHS staff were “stretched to their limit” with Wales’ hospitals dealing with more than 2,300 Covid patients.
The health board tweeted a plea at about 21:15 GMT on Boxing Day saying its critical care department was “urgently looking for assistance from medical students or other staff groups who have previously supported with proning patients”.
Proning involves turning patients on to their front to increase the oxygen supply to the lungs.
On Sunday morning it thanked people for responding to its request and said there was now “no need to call us”.
In a statement, the health board said its critical care unit “remains extremely busy due to Covid-19 and winter pressures”.
“Staffing has been challenging, however the position has improved within the last 24 hours,” it said.
There have been a further 4,142 cases of coronavirus in Wales, taking the total number of confirmed cases to 139,642.
Public Health Wales reported another 70 deaths, taking the total in Wales since the start of the pandemic to 3,368.
However, it warned figures would be higher as it did not report cases on Christmas Day.
Wales brought forward its level four national lockdown by eight days to start on 20 December.