Russian missiles slammed into a town in southern Ukraine, killing seven civilians, including children, and wounding dozens more, local authorities reported. Ukrainian officials published photos of bodies stretched out under picnic blankets in a park in Vilniansk, and deep craters in the blackened earth next to the charred, twisted remains of a building.

Thirty-six people were wounded in Saturday evening’s attack, authorities said, and declared a day of mourning Sunday. Vilniansk is in Zaporizhzhia region, less than 30 km from the local capital and north of the front lines, as Russian forces continue to occupy part of the province. Local Gov. Ivan Fedorov said that three children were among the dead and nine more were wounded.