Boris Johnson is warning that a second wave of coronavirus has arrived in the UK, as scientists reported the "widespread growth" of the virus across the country.
The Government's Scientific Advisory Group for Emergencies ( Sage ) said the R number - representing the number of people an infected person will pass the virus to - has risen to between 1.1 and 1.4, meaning cases could rise very quickly.
As ministers announced tough new restrictions affecting 13.5 million people, Mr Johnson they would "keep everything under review". "There's no question, as I've said for several weeks now, that we could expect (and) are now seeing a second wave coming in," he told reporters during a visit to the Vaccines Manufacturing Innovation Centre.