Photo from Ukraine's Defense Ministry

"Since midnight, militants had been shelling areas near Avdiyivka's industrial zone and the village of Nevelske, using grenade launchers, large-caliber machine guns and small arms for several hours in a row. Ukrainian troops stationed near the village of Pisky also came under enemy fire at night. At about 13:00 local time, one Ukrainian soldier was wounded in an attack on an ATO position near the village of Novoselivka Druha," the ATO HQ said in an update on Facebook as of 18:00 on September 17.

The condition of the wounded soldier is stable, he is now in hospital, it added.

Russian-backed militants opened fire near the village Vodiane in the Mariupol sector twice during the night. Fire from a large-caliber machine gun near the village of Starohnativka lasted for more than two hours.

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Read alsoRussia loses another UAV in Donbas (Photos)Escalation was reported in the Luhansk sector where the enemy considerably increased attacks. At about 02:00 local time, Russian proxies mounted an attack on Ukrainian troops near the village of Novozvanivka, using different types of machine guns and small arms.

"The ATO forces responded to almost every second attack with dense fire," it said.

The ATO HQ earlier reported that 35 enemy attacks were recorded on Saturday, September 16. There were no casualties among Ukrainian troops on that day.