According to the report, from May 24 to 25, near the city of Donetsk, Russian-backed militants fired tank shells, mortars and artillery on the villages of Opytne, Pisky, the mine of Butivka, Kamianka, Verkhniotoretske, the town of Avdiivka, Hranitne, Berezove, and Taramchuk.

According to the Minsk peace agreement of February 12, which was signed by the leaders of the Russian-backed militant organizations that have seized control of some parts of the east of Ukraine, heavy weapons were supposed to have been withdrawn out of range of the front line by both sides weeks ago.

In the area of Luhansk, the militants fired on the villages of Sokolnyky, Stanytsia Luhanska and the town of Shastya.

"The ceasefire is over in the area of Mariupol,” the report reads.

“The militants fired almost continuously mortars, self-propelled guns, rocket-propelled grenades and small arms on the village of Shyrokyne. A short firefight took place near the village of Hnutove. Running into heavy fire, a militant sabotage group retreated."

The situation in the direction of Artemivsk was the most calm. A sniper was working not far from the village of Slavkovychi. The militants also fired mortars twice on the village of Bohuslavske.

"During this period, the Ukrainian army recorded reconnaissance overflights by enemy drones in the direction of Mariupol - Manhush, Mariupol - Volodarske, Troitske - Novoselivka, Peredilske - Raivka, Debaltseve - Troitske and near the village of Kamianka," the ATO headquarters said.