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PM Boris Johnson says he supports Jersey as French fishing boats are set to protest about new post-Brexit rules.
Local and national contests - many delayed by Covid - are taking place in England, Scotland and Wales.
Almost all of 50 big UK firms tell the BBC staff will divide their time between home and office in future.
The UK and other nations should divert surplus vaccines to places where Covid is surging, an envoy says.
Travellers returning from "red list" countries say they can't afford the UK's quarantine fees.