Russia's hybrid military forces attacked Ukrainian army positions in Donbas 44 times on the first day of Ukraine's Joint Forces Operation (JFO) on April 30, with three Ukrainian soldiers reported as wounded in action (WIA).

Read alsoJoint Forces Operation kicks off in Donbas

The enemy has opened fire from 120mm and 82mm mortars six times and fired small arm as of 7:00, not complying with international agreements, the JFO's press center said in a morning update on Tuesday, May 1.

"Three Ukrainian soldier were wounded and evacuated to a hospital to receive medical assistance. Doctors say they are out of danger," the press center added.

As reported, the Ukrainian units fired back if needed to deter the enemy's firing activity, but without violating the Minsk accords.

Last night, it was relatively calm. The militants shelled the Ukrainian positions five times.

The enemy suffered losses as a result of the fight, namely five were wounded, according to Ukrainian intelligence.

As UNIAN reported earlier, on April 30, an Anti-Terrorist Operation officially completed in Donbas, giving way to the Joint Forces Operation (JFO).

The format change is laid down in the Donbas reintegration law signed off by President Poroshenko February 20.

From now on, the Joint Operational Staff shall be authorized to regulate the situation in the Donbas war zone instead of the ATO Staff.