He added that all the soldiers had been wounded in Donetsk region. Over the day, Russia-backed militants launched 38 attacks on the positions of Ukrainian army, according to a report by the army operation press centre. The separatists keep using heavy weapons banned by the Minsk agreements on ceasefire. They used heavy artillery, mortars, and grenade launchers to fire at positions of Ukrainian soldiers around militant-held Donetsk. The tense situation remains in the area of southeastern Ukrainian seaport Mariupol, where the terrorists were actively using mortars and machine guns to shell Ukrainian troops.