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"According to preliminary information, a soldier of the Armed Forces of Ukraine was killed in shelling of a stronghold of a mechanized brigade's unit whose personnel perform combat missions near Avdiyivka," the ATO HQ said on Facebook on Sunday morning.

Read alsoUkraine reports 41 enemy attacks, 2 WIA's in last dayRussia's hybrid military forces used 120mm mortars, large caliber machine guns and small arms in that sector, the ATO HQ said.

According to previous reports, the Ukrainian army's casualties on Saturday, April 22, included one killed in action and three wounded in action. Ukrainian troops were attacked 46 times on that day.