Russian-backed militants have fired 33 times at the positions of the Joint Forces Operation (JFO) in Donbas over the past 24 hours, wounding one Ukrainian serviceman, the JFO press center has said.

"Russian occupation troops have continued to violate the ceasefire 33 times over the past day, testing the defenses of the defenders of Krymske, Svitlodarsk, and Mariupol for strength. Our troops were actively defending and adequately responding to the enemy's actions," reads a report as of 07:00 on Saturday, which was posted on the Facebook page of the JFO.

According to Ukrainian intelligence, three militants were killed and two others wounded.

"Today, at 06:10, Russian occupation troops fired at the Mayorsk checkpoint from small arms. Fortunately, no one was injured," the report says.