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"There were three wounded in action (WIA) and four cases of concussion," he said at a briefing in Kyiv on Tuesday, an UNIAN correspondent reported.

As UNIAN reported earlier, combined Russian-separatist forces attacked Ukrainian army positions in eastern Ukraine 29 times in the past 24 hours, including 20 in the Mariupol sector, six barrages in the Luhansk sector, and three in the Donetsk sector.