Global shares tumble after Russian attack on Ukraine nuclear plant – business live

• Global shares tumble as commodity prices soar, on track for biggest weekly gains in years
• British gas for April delivery jumps 30% to new record
• IEA head says he is deeply concerned' about the situation at Europe's biggest nuclear power station
• Ukraine crisis live updates

As reported earlier, Russian elites could have their property seized and handed over to Ukrainian refugees, Britain's deputy prime minister has suggested.

Dominic Raab made the remarks as he defended the UK's response to Moscow's invasion of Ukraine and the prime minister, Boris Johnson, called for an emergency UN summit after a Russian attack on a nuclear power station in Ukraine.