Video report by ITV News Correspondent Damon Green
The government has confirmed that local coronavirus restrictions will be enforced across parts of the North West, North East, Midlands and West Yorkshire.
Ministers announced a tightening of rules in response to "major increases" in Covid-19 cases in these areas.
Additionally, parts of Scotland, Wales and Northern Ireland are under stricter protocols.
Prime Minister Boris Johnson previously announced that the 'rule of six' would come into force across the UK on Monday 14 September, preventing groups of six or more people from meeting - people who break the restrictions could be fined £100.
But with tougher local restrictions also in force in specific towns and cities across the country, ITV News has calculated that almost 14 million people in total are under additional measures too.
Here are the areas of the UK under local lockdowns, with details of what the rules are and how many people they impact.
Tougher coronavirus restrictions are in place in the North East of England, from midnight on Thursday.
Around 2 million people living in those areas will be subject to extra local restrictions as Covid-19 cases continue to rise.
The restrictions aimed at tackling the increase, will be enforced in Northumberland, North Tyneside, South Tyneside, Newcastle-upon-Tyne, Gateshead, Sunderland and County Durham.
People living in those areas will not be able to socialise with others outside their households or social bubbles.
Measures include 10pm curfews for hospitality businesses, including pubs and restaurants, which will also be restricted to table service only.
All leisure and entertainment businesses have been told they must close from 10pm to 5am.
Residents in all parts of Bradford, Kirklees and Calderdale are also banned from socialising with other households or bubbles in private homes and gardens.
Some wards in these areas had previously been exempt from such restrictions but the government has confirmed they are now all bound by them.
Households in the City of Manchester, Trafford, Oldham, Bury, Bolton, Tameside, Salford and Rochdale are still under local lockdowns.
Almost 4.4 million people in total are affected by the tougher restrictions in those areas.
Meanwhile, restrictions in Wigan and Stockport have been eased, after cases in those areas decreased, to align with rates across the rest of the UK.
People in Bolton and Oldham must not mix with anyone from another household anywhere.
While a ban on households mixing indoors continues in City of Manchester, Salford, Rochdale, Trafford, Oldham, Bury and Tameside.
In Bolton, visits to hospitals and care homes will be also be restricted, while hospitality businesses in those areas have been subjected to takeaway services only.
Pubs and restaurants in Bolton have also been closed, bringing the town back in line with the national restrictions in place prior to July 4.
In addition, the following cannot reopen or resume in Bolton:
Indoor play areas - including soft play areas
Close contact services - including face treatments or make-up applications
Wedding receptions and celebrations involving more than 20 people
Wolverhampton, Oadby and Wigston
Residents will be banned from socialising with other people outside of their own households or support bubble in private homes and gardens from Tuesday 22 September.
Birmingham, Sandwell and Solihull
Tougher restrictions were introduced from Tuesday 15 September for households in Birmingham, Sandwell and Solihull as the Department of Health and Social Care announced a national intervention due to rising infections.
The measures affect around 1.6 million people living in Birmingham, Sandwell and Solihull.
Residents in those areas have been banned from meeting with people from outside their households or support bubble.
The latest seven-day rate for Birmingham to September 8 showed 78.2 cases per 100,000 with 892 cases over the period - among the highest in the city since April, according to NHS data.
Residents in the city of Leicester have been advised not to meet or host people from different households inside their homes or garden, unless they are in their support bubble.
They have also been banned from meeting people they do not live with in their homes or gardens, whether inside or outside of Leicester, unless they are in their support bubble.
Some businesses, including casinos, exhibition halls, bowling alleys, skating rinks and indoor play areas in the city were allowed to reopen from September 15, and they face the same restrictions as the rest of the country.
Individuals who are shielding in Leicester will no longer need to from 5 October.
The next review of Leicester's lockdown rules is expected on September 24.
New lockdown restrictions will come into force on Tuesday 22 September in Merseyside, Warrington, Halton, and Lancashire (excluding Blackpool and Greater Manchester) the government said.
Residents must not socialise with other people outside of their own households or support bubble in private homes and gardens, hospitality for food and drink will be restricted to table service only and late-night operating hours will be restricted, with leisure and entertainment venues including restaurants, pubs, and cinemas, required to close between 10pm and 5am.
A ban on two households mixing indoors will continue in Preston, Pendle and part of Blackburn, residents have also been advised not to visit someone else’s home or garden even if they live outside of the affected areas.
The tougher restrictions affect around 564,000 people living in those areas.
Restrictions have been eased to align with the rest of the country in Rossendale, Darwen East, Darwen South, Darwen West, Blackburn South East, Ewood, Livesey with Pleasington, and Mill Hill & Moorgate.
Residents in those areas should not socialise with people they don't live with in other indoor public venues, such as pubs, restaurants, cafes, shops, places of worship, community centres, leisure and entertainment venues, or visitor attractions.
They are allowed to visit those venues with people in their households or support bubble.
They have also been advised not to visit their loves ones in care homes other than in exceptional circumstances - while care homes should restrict visits to these circumstances.
Skate rinks, casinos, bowling alleys, close contact services, exhibition centres and conference halls, wedding receptions and celebrations for more than 20 people cannot reopen or resume.
In Blackburn the following also must remain shut:
Indoor fitness and dance studios
Indoor sports courts and facilities
Indoor swimming pools, including indoor facilities at waterparks
Bridgend, Blaenau Gwent, Merthyr Tydfil and Newport will go into lockdown with people living there facing tougher restrictions after a spike in Covid-19 cases
Health minister Vaughan Gething said there had been a “worrying and rapid rise” in cases of Covid-19 in the four areas.
Under the measures, which come into force at 6pm on Tuesday, people must not enter or leave the areas without a reasonable excuse.
Alongside Caerphilly and Rhondda Cynon Taf - where localised lockdown measures have already been introduced - it means more than 830,000 people in Wales will be living under tougher restrictions.
Scottish first minister Nicola Sturgeon announced that tougher restrictions on home visits have been extended to Lanarkshire.
People living in the area will not be able to meet other households in their homes from midnight on Friday.
This comes after lockdown restrictions in Glasgow, East Renfrewshire and West Dunbartonshire were continued for a further week, having first been introduced on September 1.
People in Glasgow City, East Renfrewshire and West Dunbartonshire areas should not meet with people from other households indoors.
However, members of different households can continue to meet in outdoors, including in gardens and hospitality settings.
Residents who have been in close contact with someone who has tested positive for Covid-19 should isolate for 14 days.
This quarantine extends to everyone in their household group.
Care home and hospital visits in the area have been limited to essential only, but outdoor visits to care homes are permitted by up to three individuals at a time from no more than two households.
Almost 2.2 million living in those areas are affected by the local restrictions.
Limits have been put in place on indoor and outdoor meetings following a rise in cases.
Lisburn and Castlereagh council area have now been added to the restrictions list, previously it was announced that the measures would apply to the Belfast council area, Ballymena, BT28, BT29 and BT43.
The number of people who can meet in groups outdoors is 15 - a decrease from the 30 that were previously permitted.
Indoor group meetings are now limited to six people, down from 10.
Northern Ireland has also put additional police enforcement in affected areas.
Which places could have local lockdowns next?
As per the nature of coronavirus and governmental strategy, it's impossible to say which areas will definitely introduce local restrictions next.
However, each Fridays, Public Health England releases a 'surveillance report' which enables you to make an educated guess.
On 18 September, PHE identified Leeds, Blaby and Stockport as areas of enhanced support, meaning they are at medium/high risk of being placed under local restrictions. Areas of enhanced support receive additional resources (e.g. an increased mobile testing capacity) in a bid to halt coronavirus spikes.
Selby, Hartlepool, Sheffield, Spelthorne, Corby, Middlesbrough, Northampton, Scarborough, Hertsmere, Peterborough and Stoke-on-Trent have been highlighted as areas of concern. Targetted action is happening in these locations in order to reduce the prevalence of coronavirus.