The Ukrainian military says 325 soldiers and officers have been killed since the "antiterrorist" operation was launched in the country's eastern regions of Luhansk and Donetsk more than two months ago.
Ukrainian National Security Council's spokesman Andriy Lysenko told reporters on July 25 that additionally, 1,232 soldiers and officers have been injured in the fighting against pro-Russian separatists, which officially began on April 15.
The figures include 13 troops killed and 19 injured in the past 24 hours.
Hundreds of rebel fighters and dozens of civilians are believed to have been killed in the clashes, though there is no reliable information on exact numbers.
Ukrainian troops are currently involved in intense fighting outside of Donetsk and Luhansk.
In the past two weeks, Ukrainian troops have nearly cut the amount of territory held by the insurgents in half.