Prime Minister Boris Johnson has announced a second national lockdown for England to prevent a "medical and moral disaster" for the NHS.
He said Christmas may be "very different" but he hoped taking action now would mean families can gather.
Pubs, restaurants, gyms and non-essential shops will have to close for four weeks from Thursday, he said.
But unlike the restrictions in spring, schools, colleges and universities can stay open.
After 2 December, the restrictions would be eased and regions would go back to the tiered system, he said.
Mr Johnson said: "Christmas is going to be different this year, perhaps very different, but it's my sincere hope and belief that by taking tough action now we can allow families across the country to be together." Read more >>