Russia-led forces used banned artillery systems and mortars to attack JFO positions / Photo from UNIAN

Russia's hybrid military forces mounted 28 attacks on Ukrainian army positions in Donbas, eastern Ukraine, on Saturday, June 20.

"The enemy fired at our positions, using proscribed 152mm and 122mm artillery systems along with 120mm and 82mm mortars, as well as unguided air-to-air missiles, weapons installed on infantry fighting vehicles, grenade launchers of various systems, large-caliber machine guns, and rifles," the press center of Ukraine's Joint Forces Operation (JFO) Headquarters said on Facebook in a morning update on June 21.

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Three members of the Joint Forces were wounded in action as a result of the attacks.

Ukrainian servicemen fired back to suppress the enemy's fire.

According to Ukrainian intelligence reports, one member of Russia-led forces was wounded on that day.

What is more, another four attacks on Ukrainian positions were reported from 00:00 to 07:00 Kyiv time on June 21.

Enemy troops opened fire from 120mm and 82mm mortars twice near the village of Shumy in the Pivnich (North) sector. Two more attacks were reported near the village of Zalizne, where enemy troops used 120mm mortars, and near the village Krymske, where banned 120mm and 82mm mortars were used along with anti-tank grenade launchers.

Ukraine's military fired back, using available weapons.

One Ukrainian soldier was wounded on June 21.

As UNIAN reported earlier, Russia-led forces attacked Ukrainian positions in Donbas 20 times; two members of Ukraine's Joint Forces were wounded in action on that day.