Ukraine under full-scale Russian attack

Russian forces launch a full-scale assault on Ukraine, with its military attacking the country from the north, east and south.

People in the capital, Kyiv, have been hearing explosions and air-raid sirens throughout the day, reports BBC.

Thousands of people have been trying to flee and seek safety in neighbouring countries.

Ukraine vows to fight back, and its president warns this could be the start of a major European war.

The Nato defence alliance denounces Russia's invasion as cold-blooded and long-planned.

UK PM Boris Johnson announces new sanctions on Russian oligarchs and asset freezes on banks and defence companies.

Vladimir Putin warns that Moscow's response will be "instant" if anyone tries to take on Russia.