Militants have conducted 42 attacks on Ukrainian army positions over the past day, the anti-terrorist operation staff's press center wrote on Facebook on Tuesday.

"The enemy opened fire on Ukrainian positions 42 times in the past 24 hours, or 13 times more than the day before," the report said.

According to it, militants fired 82mm mortars near Avdiyivka, Vodiane, Taramchuk, Novotoshkivske, Krasnohorivka and Novomykhailivka, and used 120mm mortars near Novotroitske.

Most shelling instances by use of various types of grenade launchers, machineguns and small arms were observed in Maryinka, the press center said.

The Ukrainian army returned fire 13 times, it said.