“Russia deliberately hit civilians and all those responsible for the crime must be brought to account,” he said, denouncing the “barbaric behavior by Russia that tramples on international humanitarian law.”

Rescue teams with sniffer dogs combed through the debris Friday in a central Ukrainian city looking for people still missing after a Russian missile strike a day earlier killed at least 23 people and wounded over 100 others, reports AP.

Russian forces, meanwhile, pounded other sites in a relentless push to wrest territory from Ukraine and try to soften the unbending morale of its leaders, civilians and troops as the war nears the five-month mark. Thursday’s cruise missile strikes on the Ukrainian city of Vinnytsia launched by a Russian submarine were the latest incidents to take civilian lives and fan international outrage since Russian President Vladimir Putin launched the invasion on Feb. 24.

Even as the fighting raged, Russia noted signs of progress in talks on a possible deal to allow Ukraine to export millions of tons of grain via the Black Sea that could help feed a world facing higher food prices.

Alluding to talks in Istanbul this week among Russia, Turkey, Ukraine and the United Nations, Russian Defense Ministry spokesman Lt. Gen. Igor Konashenkov said a final document had been prepared and Russian proposals to help ease grain shipments through Ukrainian ports have been “largely supported” by other participants.

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