The combined Russian-separatist forces attacked Ukrainian army positions in eastern Ukraine four times overnight, the press center of the Anti-Terrorist Operation (ATO) wrote on Facebook on Wednesday.
"From 18:00 to midnight on September 9, the illegal armed groups fired several times on ATO forces in Donbas," the press center said.
In the direction of Artemivsk, at about 18:30 Kyiv time, the militants started firing small arms on a fortified position of the Ukrainian armed forces in the village of Luhanske.
At 20:25 Kyiv time, the mercenaries started firing a grenade launcher on ATO forces near the town of Schastia.
"In addition, from 21:05 to 23:10, the Russian proxies were firing infantry fighting vehicles, grenade launchers, heavy machine guns and small arms on our units to the south of the town of Avdiyivka from the village of Spartak," the headquarters said.
"From midnight to 06:00 on September 9, the Kremlin-backed mercenaries were not using weapons along the demarcation line," the press center said.