Boris Johnson will consider the weekend whether to further tighten the Kovid-19, after stating that the UK is “now seeing a second wave”.
The government is understood to focus on banning homes in England, and reducing the opening hours for pubs and restaurants.
At least 13.5 million people, around one-fifth of Britain’s population, are already facing local sanctions.
In London, additional measures were “likely to be faster”, its mayor said.
Mr Johnson only has direct power over sanctions in England. Developed governments in Scotland, Wales and Northern Ireland can set their own rules.
A widespread increase of the virus has been reported across the country, with cases doubling every seven to eight days.
On Friday, there were 4,322 confirmed cases – for the first time since May 8, the daily total of positive tests has exceeded 4,000.
Meanwhile, governments across Europe have announced new restrictions to deal with increased infections.
Speaking on Friday, Mr Johnson said he “does not want to go into large lockdown measures” but that strict social distance rules may be necessary.
He said: “Clearly when you see what’s going on, you’ve wondered if we need to go beyond the rule of six on Monday.”
The government is understood to be considering a short period of short regulations across England – “a circuit break” – which may include the closure of hospitality venues.
However, schools and workplaces will remain open.
No 10 is limiting the opening hours of pubs and restaurants across the country, as has already happened in many areas of north-east England, where pubs were to close at 22:00 BST on Friday.
Scottish First Minister Nicola Sturgeon, Welsh First Minister Mark Drakeford, and Labor Leader Sir Keir Starr have all called on the Prime Minister to hold an emergency Cobra meeting.
Ms Sturgeon said the next few days would be “important” to avoid another full-scale lockdown in Scotland.
London Mayor Sadiq Khan said he was concerned with the evidence of the speed with which coronovirus was spreading in the capital.
“We will consider some measures that have already been put in place in other parts of the UK,” he said.
“I am of the firm view that we should not wait, as it did six months ago, for this virus to spiral out of control again before action.”
The government’s Scientific Advisory Group for Emergencies (SEZ) said the R number – representing an infected person’s number the virus would pass – had risen between 1.1 and 1.4.
Although deaths remain at very low levels, Sage said the increase in R numbers “shows that we are moving towards a wide spread increase in transmission at a faster rate”.
Medical Director of Public Health England Yvonne Doyle “warned of worse things to come”.
The sharp rise in UK cases over the past two weeks has been amidst ongoing problems with the government’s trial and trace program, causing people to struggle for trial.
‘Britain’s trajectory is not written in stone’
The question is no longer where we are, but where we are going.
Yes, the number of people infected with Kovid or in hospital dying of the disease is at a much lower level than at all extreme levels.
Scientists will quibble over the precise definition of a “second wave”, but all data point to an increasing number of transitions.
The government’s science advisors say the number is now doubling every week.
If those trends continue, the transition could go from an estimated 6,000-day to more than 100,000 by mid-October.
This is the trajectory, which is not written in stone, the government is trying to change.
There are questions for politicians whether it should “circuit-break” to improve the test and trace.
But, with evidence that only one in five people are following the rules of self-isolation when they become ill, there are questions for all of us as well.
New restrictions went into effect Tuesday for large parts of the North West of England, West Yorkshire and the Midlands.
The latest areas to see additional areas include Lancashire (except Blackpool), Mercedes and Cheshire Borough of Warrington and Hatton.
Additional restrictions are being imposed in Wolverhampton, Odby and Wigston in Leicestershire and all parts of Bradford, Kirkless and Calddale.
In total, approximately 4.7 million people will be affected by the new restrictions, which prohibit individual families from visiting each other at home or in private gardens.
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