23 attacks have taken place in Donbas since Sunday morning, ATO Press Centre reported on Monday.
Most of the attacks were reported in the vicinities of Donetsk region; five attacks took place near Mariupol, government-held port city, and two more in Luhansk region.
Avdiivka, the key flashpoint in the combat area, was shelled from 120 and 82 mm mortars, automatic grenade launchers and small arms. Positions of Ukrainian troops near Mayorsk, Luhansk, Zaitseve, Opytne, Novhorodske and Butivka coal mine were attacked, too.
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Near Shyrokyne, not far from Mariupol, militants fired mortars; hostile snipers targeted Ukrainian positions near Tryokhizbenka and Stanytsia Luhanska, both in Luhansk region.