Militants opened fire on Ukrainian servicemen in Donbas 76 times over the past 24 hours, the press center of the anti-terrorist operation (ATO) headquarters said early on Monday.

"In particular, 37 instances of shelling were recorded in the Donetsk sector, 27 in the Mariupol sector and 12 in the Luhansk sector," the headquarters' press service said in its summary report published on its Facebook page and valid as of 6:00 a.m. on Monday.

Militants conducted fire until dawn on Arkhanhelske in the Donetsk sector, using 152mm heavy artillery. More than 100 122mm shells were fired on Avdiyivka by militants, in four series of shellings over two hours. Three shells of the same caliber hit the community of Pisky, it said.

Militants actively used mortars, including 120mm-caliber, which are prohibited under the Minsk agreements, in the segment that extends from Avdiyivka to northern Horlivka's outskirts. They also fired on the same segment using various grenade launcher systems and large-caliber machineguns. In addition, militants subjected Avdiyivka to mass shelling using tanks, firing more than 40 shells.

"Near the Svitlodar Arc the adversary conducted fire using 82mm mortars and used infantry fighting vehicles, and carried out a strike on Novoselivka Druha using an anti-tank system. The enemy fired anti-aircraft guns on fortifications in Luhanske, Pisky and Avdiyivka. Defenders of Pisky and Opytne were targeted by a sniper," the press center said.

Militants fired more than 60 120mm artillery shells on Shyrokyne in the Mariupol sector, and about seven more shells on defenses in Talakivka. The adversary also conducted fire from mortars, grenade launchers and machineguns on Maryinka, Taramchuk, Krasnohorivka and Talakivka, the Ukrainian headquarters said.

Shyrokyne, Vodiane, Novotroitske and Hnutove were shelled using various grenade launcher systems and heavy machineguns, while mounted grenade launchers fired on Nova Hryhorivka and Starohnativka. An action on the part of infantry fighting vehicles was recorded in Maryinka. Besides, snipers were sighted there and in Shyrokyne, it said.

The hostiles also conducted fire on the Ukrainian positions in Nova Oleksandrivka, Novozvanivka and Zhovte in Luhansk region, using grenade launchers, while using small arms in Zolote. Shelling of Stanytsia Luhanska continued with 82mm mortars, as well as various grenade launcher systems, large-caliber machineguns and small arms. A sniper became active near Ukrainian positions in Nova Oleksandrivka, it said.

"An unmanned aerial vehicle was twice spotted flying over our positions," the Ukrainian headquarters said.