During the past day, militants opened fire on Ukrainian positions 54 times, according to the report.
Russian-supported terrorists resorted to continuous attacks in Prymorske, Donetsk and Luhansk directions.
The militants mainly fired small arms, large-caliber machine guns, and grenade launchers of various types.
Read alsoUkraine reports 53 enemy attacks, 2 KIAs, 6 WIAs in last day"As a result of the attacks over the past day, three soldiers of the Ukrainian Armed Forces were wounded," the headquarters said.
As UNIAN reported, on May 11, reserve officer David Sikharulidze, a Georgian native who had been fighting alongside government troops in the ATO zone, was killed in action.