The Ukrainian army has suffered casualties in the course of attacks in the anti-terrorist operation zone in eastern Ukraine in the past 24 hours, Ukrainian Presidential Administration spokesman Andriy Lysenko said.

"One Ukrainian serviceman was killed and nine suffered injuries in the hostilities over the past day. Two soldiers suffered contusions," he told a press briefing in Kyiv on Tuesday.

"One died, one suffered injuries and one was shell-shocked during shelling in the village of Pavlopil; three were wounded in an artillery attack on Avdiyivka; one was hurt in grenade launcher fire on Opytne, one was wounded in a shelling incident in Shyrokyne, two suffered injuries and one was contused in Luhanske, and one was injured in Zaitseve," Lysenko said.

The hostiles fired over 690 mines and 250 artillery shells on Ukrainian positions on Monday, he said.

The number of shelling incidents doubled to 25 in the Luhansk sector, the spokesman said. Tensions persisted in the areas of Popasna, Zolote, Krymske, Zhovte and Stanitsa Luhanska. Snipers were active on Bakhmutka road and near Popasna, he said.

Tensions flared up near Svitlodarsk, the Avdiyivka industrial zone and Donetsk airport in the Donetsk sector, Lysenko said. Tanks and artillery were engaged in attacks on Donetsk airport which happened along the Butovka mine - Opytne - Pisky frontline. The hostiles fired cannons on a rear area near Keramik, 13 kilometers from the contact line. Intense artillery fire was observed on the northern outskirts of Horlivka. In all, 46 attacks were conducted in the Donetsk sector over the past day, which saw nine attacks more than the previous day.

In the Mariupol sector, the hostiles fired mortars on Ukrainian army positions during the day and once used Grad multiple rocket launchers in Krasnohorivka. Gunfire was most intense on the Maryinka-Krasnohorivka line and in Shyrokyne. Intense mortar fire on Ukrainian positions in Pavlopil was observed in the morning: the hostiles fired 60 mines. In all, 20 shelling incidents were observed in the Mariupol sector over the past day, half of them by use of heavy weapons.