More than 1,300 dead soldiers were identified in the last two weeks alone, they said.
Get the inside scoop on today’s biggest stories in business, from Wall Street to Silicon Valley — delivered daily.
Publicly, Russian officials have admitted to losing no more than 6,000 men since last year's all-out invasion of Ukraine.
But researchers working with the BBC say they have now identified — by name — more than 30,000 dead Russian soldiers, including more than 1,300 in the last two weeks alone.
The British government, earlier in the year, said as many as 60,000 Russians had been killed in action.
At least 2,400 Russian officers have also been identified as killed, according to the group, including 284 who were considered "high ranking.".
At least 9,000 civilians have also been killed in Ukraine, according to the United Nations, most in areas targeted by Russian forces. »
