The Mariupol zone was the scene of the heaviest shelling on March 20, the army reports.
The fight near Vodyane, involving small arms fire, grew into a massive shelling by the Russian/rebel troops later in the day. The enemy used 122-mm Grad missile batteries, 152-mm howitzers and 122-mm artillery to shel Ukraine army positions
In the Donetsk area near Avdiivka, the enemy opened fire from large-caliber machine guns and from a tank, 120-mm mortars and grenade launchers.
In the Luhansk area, the enemy used 82-mm and 122-mm mortars and grenade launchers.
March 20, 3 Ukrainian servicemen were killed and 8 wounded, the army says.