Explainer

COVID-19: Are you under lockdown? Find out the rules in your area with our postcode checker

Pubs and restaurants would be closed for two weeks under the social lockdown
Why you can trust Sky News

Millions of people will face more restrictions after Prime Minister plunged England into a third national lockdown.

The new lockdown - the third time a national shutdown has been introduced - is expected to last until the middle of February.

The public are being asked to follow the new rules, which replaces the tier system.

Only the Isles of Scilly, with a population of just over 2,200 people, will be in Tier 1.

Search your area on this map to find out which tier you are in

Type your postcode into the blue box to find out the restrictions in your area

The situation in other UK nations varies.

Methodology: In order to compare restrictions in all the UK nations, Sky News has grouped areas based on the common core factors currently in place.

The tier systems in England and Scotland are different. Wales and Northern Ireland have not announced a tier system and they are currently applying restrictions nationally, unless they specify extra restrictions in some local areas.

The map and postcode checker currently group Cornwall and the Isles of Scilly together.