Russia's hybrid military forces on May 27 mounted four attacks on Ukrainian army positions in Donbas.

Read alsoPresident Zelensky pays first working visit to Donbas (Photos)

"Ukraine Army reported no casualties over the past day. Each enemy attack had an adequate response. According to intelligence reports, four occupiers were wounded," the press center of Ukraine's Joint Forces Operation said in an update on Facebook as of 07:00 Kyiv time on May 28, 2019.

Видео дня

During the period under review, Russian occupation forces opened fire from 82mm mortars, grenade launchers of various types, heavy machine guns, and small arms to attack the Ukrainian positions near the villages of Berezove, Mykolaivka Druha, Pivdenne, and Mayorsk.

"From midnight on Tuesday, Russia-led forces attacked Ukrainian positions once near the town of Maryinka, using 120mm mortars. There were no casualties among the Ukrainian military [on Tuesday]," the report said.