Four Ukrainian soldiers were wounded in action in Donbas, eastern Ukraine, in the past day amid 18 enemy attacks mounted by Russia-led forces.

They used proscribed weapons, namely 152mm and 122mm artillery systems and 120mm and 82mm mortars in six instances, the press center of the Joint Forces Operation headquarters said on Facebook in a morning update on May 19.

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What is more, the enemy was shelling the Ukrainian positions, using weapons of infantry fighting vehicles, grenade launchers of various systems, large-caliber machine guns, and small arms.

Ukraine's Joint Forces fired back, responding to each of the enemy's attacks.

Ukrainian intelligence reports says that two enemy fighters were killed and another three were injured on May 18.

Since Sunday midnight, the enemy has opened fire from anti-tank grenade launchers and small arms to attack Ukrainian positions near the village of Vodiane in the Skhid (East) sector.

The Joint Forces fired back after every attack.

No Ukrainian army casualties have been reported.