Between 10,000 and 13,000 Ukrainian soldiers have been killed in the war in Ukraine, according to Mykhailo Podolyak, an adviser to Ukrainian President Volodymyr Zelensky.
This figure is much lower than estimates suggested by the United States.
"We have official figures from the General Staff, official figures from the high command, and according to them we have between 10,000 and 12,500 to 13,000 killed," Podolyak said speaking on national TV on Thursday.
On November 10, Chairman of the US Joint Chiefs of Staff Gen. Mark Milley said Russia has suffered more than 100,000 killed and wounded soldiers as a result of the war in Ukraine and that Kyiv is probably looking at similar numbers.
There is no confirmed number of troop casualties on either side for the war in Ukraine.
CNN has contacted the Ukrainian military for comment. However, Bohdan Senyk, head of the public relations department of the Armed Forces of Ukraine previously declined to confirm Ukrainian army losses.