Two Ukrainian soldiers have been killed and 10 others wounded in the country Eastern Donetsk region of the country.
The milatary said for more than a day, Pro-Russian separatists fired at Ukrainian positions using large-calibre artillery, grenade launchers and drones.
The Ukrainian army is locked in a conflict with breakaway fighters in the Donetsk and Lugansk regions that started after Russia annexed the Crimean Peninsula in 2014.
At least 52 Ukrainian troops have reportede been killed since beginning of the year and 50 in 2021.
The separatists say they have lost more than 30 soldiers since the start of the year.