Prime Minister Boris Johnson has defended what he called the UK's "astonishing" efforts to tackle the coronavirus, rejecting accusations that with Europe's worst death toll, his response to the health crisis was badly lacking.
But a top scientist who had advised the British government said the death toll could have been halved had lockdown measures been introduced a week sooner.
More than 40,000 people are confirmed to have died from Covid-19 in the UK, although the figure rises to more than 50,000 when suspected cases are included.
On either measure, the toll is second only to that of the United States, although each country has different reporting methods and lag times - and the pandemic is far from over.