Ukrainian army positions came under 58 attacks on Sunday, the press center of the anti-terrorist operation staff said in a report posted on Facebook on Monday.

"Most attacks, 35, were conducted in the Mariupol sector. The hostiles fired 122mm howitzers on Novohryhorivka, and shelled Talakivka, Vodiane and Starohnativka by use of 82mm and 120mm mortars," the report said.

In the Mariupol sector, infantry combat vehicles and grenade launchers were used in Shyrokyne, Talakivka and Vodiane, while anti-aircraft guns were fired in Hnutove and large-caliber machine guns in Krasnohorivka. Sniper activity was observed near Maryinka.

Twenty-one violations of the truce occurred in the Donetsk sector. Avdiyivka and Novoselivka Druha came under fire of 82mm and 120mm mortars, various types of grenade launchers, large-caliber machineguns and small arms. Ukrainian fortifications near Nevelske, Opytne and the Butovka mine were shelled by 82mm mortars. The Ukrainian army engaged in a shootout with a group of militants in Avdiyivka.

Two attacks on Ukrainian army positions by use of grenade launchers and small arms were observed near the populated locality of Orikhove in the Luhansk sector.