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The leader of Islamic State has blown himself up in what US President Joe Biden called an "act of cowardice" during a raid by US special forces in Syria. Abu Ibrahim al-Hashimi al-Qurayshi detonated a bomb that killed himself and his family members, in the rebel-held province of Idlib.

The Chinese leader Xi Jinping is to hold talks with Russian President Vladimir Putin hours before the official opening of the Winter Olympics in Beijing.

And why nasal spray vaccines could be vital in the fight against Covid-19.