Anywhere in South East, East and London (including Wokingham Borough) that was in Tier 3 will move into Tier 4, which will essentially mean lockdown rules apply from one minute past midnight tonight (00:01am Sunday December 20)
Those living in tier 4 areas should not mix with anyone outside their own household at Christmas, though support bubbles will remain in place for those at particular risk of loneliness or isolation.
Across the rest of the country, the Christmas rules allowing up to three households to meet will now be limited to Christmas Day only, rather than the five days as previously set out.
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Public Health England and Department of Health and Social Care guidance