Hundreds of passengers arrived on the last flights before all UK travel corridors are scrapped and all arrivals require a negative coronavirus test.
Britons scrambled to fly home before the new measures take effect on Monday as part of desperate efforts to stop new, more infectious Covid-19 strains from being imported.
Photos taken at Heathrow Airport in west London show people being welcomed with hugs and flowers as they beat the 4am corridor deadline.
Ministers are reportedly considering introducing quarantine hotels and using GPS and facial-recognition technology to ensure people isolate.
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