KYIV, Ukraine — A daytime Russian missile attack on the southern Ukraine city of Zaporizhzhia killed at least 13 civilians and injured about 30 others Wednesday, officials said.

Footage posted on Ukrainian President Volodymyr Zelenskyy’s Telegram channel showed civilians lying in a city street littered with debris. They were being treated by emergency services and taken away on gurneys.

Russia has frequently launched aerial attacks on civilian areas during the almost three-year war. Thousands of civilians have been killed in Europe’s biggest conflict since World War II.

Zelenskyy and regional Gov. Ivan Fedorov said Wednesday’s attack killed at least 13 civilians. Minutes before the attack, Fedorov had warned of a threat of high-speed missiles and devastating glide bombs being fired at the Zaporizhzhia region.

Russian troops started launching the glide bombs at Zaporizhzhia in the middle of the afternoon, and at least two bombs struck residential buildings in the city, Fedorov said.

He announced that today would be a day of mourning in the region.

— The Associated Press