What are the Tier 4 rules for London as Christmas cancelled by lockdown? Nicholas Cecil UP NEXT Christmas bubbles are now axed for London and many surrounding areas as they were slammed into Tier 4 as a new fast-spreading variant of Covid-19 was blamed for a surge in cases. Prime Minister Boris Johnson effectively cancelled Christmas gatherings for millions of families in London and the wider South East on Saturday as he sought to contain the spread of the mutant virus. The Christmas relaxation for the rest of the country was dramatically scaled back to three households being able to meet on Christmas Day alone rather than for five days in England.