"At around 17:30 Kyiv time today [on Monday, March 13], a 36-old female volunteer was wounded amid shelling of our positions at a roadblock before Avdiyivka's industrial zone. The attack in that direction was mounted by Russian mercenaries using grenade launchers of different systems. The victim who has sustained a minor injury of the soft tissues of the chest was taken to the 66th mobile hospital in the town of Pokrovsk, where she received first aid and a fragment [of a projectile] was removed. The volunteer's condition is satisfactory," the ATO HQ said in an update as of 21:00 on Monday, March 13.

The overall situation in the ATO zone remains tense, the HQ said.

It reported earlier on Monday that from 00:00 to 18:00 on the same day, Russia's hybrid military forces attacked Ukrainian troops 42 times in Donbas.

Read alsoFighting "non-stop": Def. Ministry on escalation in Donbas"Forty-two attacks on the Ukrainian armed forces' positions have been recorded since the beginning of the day," it said. By 18:00, there had been only one Ukrainian soldier wounded in action.

The Russian occupiers used banned 122mm artillery systems to shell positions near the village of Pavlopil in the Mariupol sector in Donetsk region. They also used small arms, large-caliber machine guns and grenade launchers to fire on the Ukrainian positions near the villages of Shyrokyne, Vodiane, and Chermalyk, while the village of Novotroyitske came under sniper fire.

Large-caliber machine guns, grenade launchers and 82mm mortars were used to attack Ukrainian troops stationed near the towns of Avdiyivka and Svitlodarsk, and the villages of Opytne, Verkhniotoretske, Zaitseve, Luhanske, and Novhorodske in the Donetsk sector. Avdiyivka and Butivka coal mine were attacked by a tank.

The Russian occupation forces in the Luhansk sector shelled Ukrainian positions near the village of Krymske and the town of Popasna, using grenade launchers of various systems. Later they started to launch 82mm and 120mm mortars. Small arms and anti-tank grenade launchers were used to fire on Ukrainian positions near the village of Novo-Oleksandrivka.