What are the local lockdown rules in Manchester, Aberdeen, Bradford, Preston and Northern Ireland?
The rules: All pubs, bars and restaurants have been closed, while a five-mile advisory limit on travel is also being reintroduced and residents have been advised not to visit other people in their homes.
Restrictions will continue until at least August 26, Nicola Sturgeon said.
The rules: From next week, new limits will be in place on indoor and outdoor gatherings. Health Minister Robin Swann said groups who meet outdoors would now be limited to 15, down from 30, following a rise in cases.
Groups meeting indoors will be limited to six people from two households, down from 10 people.
Which areas are at risk of a second lockdown?
Birmingham has been added to a watchlist amid growing concerns about a rise in cases.
The city will get more testing and Matt Hancock, the Health Secretary is meeting council leaders to discuss next steps.
Cases of are rising quickly, with 25.5cases per 100,000 people last week. More than half of these were among people aged 18 to 34.
Northampton, where the rate of infection stands at 78.4 cases per 100,000 people, is also on the watchlist.
Public Health England produces a weekly watchlist of affected areas.