Militants were shelling villages in the ATO zone the whole night / Photo from a militant website

In the early hours of Sunday, the situation in the ATO zone was relatively calm. However, almost 30 cases of shelling by militants were recorded overnight.

"Militants from illegal armed groups shelled our defenders almost 30 times. In some of the cases, they used the weapons that are prohibited by the Minsk agreements," the update said.

The positions of the Ukrainian troops near the village of Pisky, which is located near the destroyed Donetsk airport, were attacked from 120mm-caliber mortars, while the village of Vodiane was shelled from 122mm-caliber artillery systems.

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"The enemy fired from tanks and armored personnel carriers on the positions of our troops near the village of Novolaspa. In the town of Maryinka, they used small arms to incite Ukrainian servicemen [to fire back]," the press center said.

In Luhansk region, the village of Sokilnyky was a hot spot.

What is more, two Ukrainian soldiers were wounded by shrapnel when militants used automatic grenade launchers and anti-aircraft systems to shell the village of Valuyske in Luhansk region from the right bank of the River Siversky Donets on Saturday, according to Chairman of Luhansk Regional Military and Civilian Administration Hennadiy Moskal's press service.

Last night, Russian-backed militants also used mortars whose caliber is more than 100 mm to shell the village of Leninske in the Artemivsk sector. The village of Kirove in the same sector came under fire several times – militants used grenade launchers, 82mm-caliber mortars and heavy machine guns.

In the early hours of Saturday, militants attacked Shyrokyne from 120mm-caliber mortars and 122mm-caliber artillery systems.

The ATO press center also reported about active aerial reconnaissance by militants: 20 enemy drones were spotted over the period. Most of them were flying in Luhansk region.