The Donbas militants conducted 56 attacks on Ukrainian army positions in the past 24 hours, the army operation press center in eastern Ukraine has said.

Thirty-five attacks were observed in the Donetsk sector, and 21 in the Mariupol area; the gunfire intensity reduced a lot after midnight, the press center wrote on Facebook.

The militants fired 20 mines on Ukrainian army strongholds in Pervomaisk and another 20 on the positions in Zaitseve at around 6 p.m. Fortifications near Nevelske came under random mortar fire.

The militants' mortars shelled Ukrainian army strongholds near Maryinka, Hnutove and Chermalyk in the Mariupol area.

Ukrainian army positions near Maryinka, Zaitseve, Mayorsk, Novoselivka, Avdiivka, Opytne, Pisky and Novhorodske were shelled by the militants' grenade launchers, large-caliber machineguns and small arms. An air defense launcher was used near Krasnohorivka.

Besides, militants' snipers attacked Ukrainian units stationed near Maryinka, Opytne and the Butivka mine, the press center said.

"In some cases, our soldiers fired grenade launchers and small arms," the report said.