Up to 15,000 Russians have died, says Nato

30,000 to 40,000 Russians are thought to have been killed or wounded in the fighting

Between 7,000 and 15,000 Russian troops have died after one month in the invasion of Ukraine, Qazet.az reports according to a Nato official.

The official added that 30,000 to 40,000 Russians are thought to have been killed or wounded in the fighting.

Russia has not provided an official death toll since 2 March, when it said that 500 of its troops had died.