"The situation was most intense near the town of Horlivka and in the vicinity of the city of Donetsk. The enemy fired from grenade launchers of different types and heavy machine guns on our fortified positions in the village of Opytne, the towns of Avdiyivka and Maryinka, and Butivka coal mine. The militants fired mortars near the village of Pisky. Not far from Horlivka, the enemy fired on the Ukrainian positions from grenade launchers, heavy machine guns, small arms, as well as mortars," the report says.

Read alsoOSCE tower camera reveals movement of ATO forces to militants – journalist"The Russian-backed mercenaries fired banned 120mm mortars six times on our fortified positions in the villages of Zaitseve and Mayorsk. Due to the fact that the enemy intensified shelling of Zaitseve and fired from different firing positions at night, the leadership of ATO forces in Donetsk and Luhansk regions was forced to announce the temporary closure of the checkpoint in Zaitseve to ensure safety of residents," the press center said.