The British and American ambassadors to Russia have laid flowers at a memorial to Alexei Navalny in Moscow.

The Russian opposition leader died after collapsing following a walk in his Arctic prison, over the weekend.

Meanwhile, G-7 foreign ministers have met in Munich to discuss ideas to punish Russia for his death.

Europe correspondent Gavin Grey told Mike Hosking that the UK and US have suggested seizing Russian central bank assets held abroad to pay for Ukraine.

He says they believe the way to make Vladimir Putin uncomfortable is not demanding an explanation for Navalny's death, but to hit him in the pocket.

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