Explosions heard in cities across Ukraine after Vladimir Putin announces operation to ‘demilitarise’ neighbouring country. Follow the latest news and updates
- Russia attacks Ukraine amid warnings of worst European war since 1945
- Ukraine’s president Zelenskiy pleads with Russians to ‘listen to reason’
- Visual guide: the Ukraine-Russia crisis explained
- British sanctions on Russia: what is on the table?
- Ukrainians in UK making plans to return to take up arms
- Ukraine urges its citizens to leave Russia immediately
I’m Samantha Lock and welcome to our rolling coverage of the crisis in Ukraine, which has escalated in recent hours with the start of a Russian attack on its neighbour.
Here are the main developments: