The Ukrainian forces' positions in Donbas have been shelled by hostile armed formations 12 times since this Tuesday began, the anti-terrorist operation press center said.

In the Luhansk area, there was no shelling; eight shell attacks took place in the Mariupol area, four in the Donetsk, near the town of Avdiyivka where the enemy simultaneously used large-caliber machineguns, various grenade launchers and mortars of the 120 millimeter caliber, the press center said.

In the Mariupol area, small arms, machineguns, grenade launchers and sniper fire were used near Starohnativka and Maryinka; mortars of the 82 millimeter caliber, near Krasnohorivka and Vodiane, according to the statement.