For the first since April the UK has recorded more than 1,000 daily Covid-related deaths – one of the highest figures of the pandemic.
Right now, London is at the epicentre of this crisis. Hospitals now have more Covid patients being admitted every day than they did at the peak in April. Many doctors and nurses say they're reaching breaking point.
The BBC's medical editor Fergus Walsh filmed inside the intensive care unit at London's University College Hospital, which is one of the busiest in the capital.
Source: BBC News, 6 January 2021