21:06Newshour19/12/2020 21:06 GMT: UK pandemic rules tightened over new strain of coronavirusBBC World Service Duration: 53 minutes Sat 19th Dec 2020, 21:06 on BBC World ServiceUK Prime Minister Boris Johnson bans Christmas gatherings as virus spreads. Show more GenresNewsFormatsMagazines & ReviewsBrandNewshour Source: BBC Online