Russia's hybrid military forces on May 4 mounted 12 attacks on Ukrainian army positions in Donbas, eastern Ukraine, with one Ukrainian soldier reported as wounded in action.

"The Russian Federation's armed formations violated the ceasefire 12 times in the past day," the press center of Ukraine's Joint Forces Operation Headquarters said on Facebook in an update as of 07:00 Kyiv time on May 5. "As a result, one serviceman of the Joint Forces was wounded in enemy shelling."

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Russian-led forces opened fire from proscribed 120mm and 82mm mortars, grenade launchers of various types, heavy machine guns, and rifles.

Under attack were Ukrainian positions near the town of Krasnohorivka and Avdiyivka, and the villages of Verkhniotoretske, Novotroyitske, Starohnativka, Vodiane, Shyrokyne, Krymske, and Orikhove.

Joint Forces returned fire to each enemy attack. According to intelligence data, one member of Russia-led forces was killed and another two were wounded on May 4. In addition, an enemy military truck was destroyed.

"Since Tuesday midnight, Russia-led forces have attacked Ukrainian positions near the village of Nevelske, using 82mm mortars," the update said.

There have been no Ukrainian army casualties since Tuesday midnight.