The government reported the highest daily number of coronavirus cases in over a month – when quarantine for arrivals from Luxembourg was announced.
A total of 846 new cases of COVID-19 were reported on Thursday, the UK's highest total since June 28 (901 cases).
Another 38 people died in all settings after they tested positive Corona virusand the official death toll increased to 45,999.
The 14-day self-isolation requirement for arrivals from Luxembourg was reintroduced across the UK on Thursday from midnight after the number of cases in the country increased.
It comes days after the UK has reintroduced the same restrictions on those returning from Spain.
The decision has led to an ongoing dispute with Secretary of Transportation Grant Shapps say the government "had to act".
Following the move, Prime Minister Boris Johnson warned that there were Sign that a "second wave" is appearing in Europe.
Health Minister Matt Hancock has repeated this, telling Sky News earlier that he is "concerned" about a further increase in infections, with a "second wave starting to roll across Europe".
Ireland reported 85 new cases of the virus on Thursday, the highest daily total in over a month.
Meanwhile, the French health authorities reported 1,377 more cases on Wednesday.
This means that the rolling seven-day average in France is above the threshold of 1,000 for the first time since May.
It was like that in Britain announced on Thursday evening that separate households in Greater Manchester, East Lancashire and parts of West Yorkshire will no longer be able to meet indoors after an increase in coronavirus cases starting Friday.
Earlier, Boris Johnson said coronavirus was "Bubble" in up to 30 areas across the UK.
He said COVID-19 levels are "falling" in Leicester – the first city to be closed – but the British have to beware of a "really harmful second wave".
"As a country, it is absolutely important that we continue to keep our focus and discipline and not pretend that we are out of the woods somehow or that everything is over because it is not all over," the Prime Minister warned.
The locations with the highest fall rates per 100,000 people are, according to the latest data from NHS Digital Blackburn, with Darwen (85.3), Leicester (57.7), Oldham (53.1), Bradford (44.9) and Trafford (39 , 3).
Behind them are Calderdale (32.4), Rochdale (30.9) and Sandwell (27.5) Set up your own contact tracking system in an effort to curb outbreaks and out of frustration with Whitehall's.
The full list of non-quarantined countries for English vacationers can be found below – while the list of Scottish exceptions may appear found here::
- Antigua and Barbuda
- Bonaire, Sint Eustatius and Saba
- Czech Republic
- Faroe Islands
- French Polynesia
- Hong Kong
- New Caledonia
- New Zealand
- San Marino
- South Korea
- St. Barthelemy
- St. Kitts and Nevis
- St. Lucia
- St. Pierre and Miquelon
- St. Vincent and the Grenadines
- Trinidad and Tobago
- Vatican City