September 4, 2015. During last day, the situation remained stable in ATO zone. In general, the illegal armed groups respected silence, and some cases of the use of weapons by the enemy were chaotic and provocative, ATO press service reports.

At about 8:00 p.m. and 10:00 p.m., the mercenaries started firing small arms and rocket-propelled grenades on our fortified position southwards of Avdiyivka town. At 8:30 p.m., the militants started firing an 82mm mortar on Ukrainian positions in Opytne village from Spartak village.