Russian missiles that struck a city in central Ukraine killed at least 23 people and wounded about 90 more Thursday, Ukrainian authorities said. The country’s president called the attack “an open act of terrorism” against civilians in locations without military value.

Ukraine’s national police said three missiles hit an office building and damaged nearby residential buildings in Vinnytsia, which is located 268 kilometers, that is 167 miles, southwest of the capital, Kyiv.

A Russian submarine in the Black Sea fired Kalibr cruise missiles at the city, and three children were among the dead, the deputy head of Ukraine’s presidential office, Kyrylo Tymoshenko, stated. The Russian military has not confirmed the strike.

Ukrainian President Volodymyr Zelenskyy suggested the attack was deliberately aimed at civilians. The strike happened as government officials from about 40 countries met in The Hague to discuss coordinating investigations and prosecutions of potential war crimes committed in Ukraine.

Every day Russia is destroying the civilian population, killing Ukrainian children, directing missiles at civilian objects. Where there is no military (targets). What is it if not an open act of terrorism? Mr. Zelenskyy stated.

Vinnytsia is one of Ukraine’s largest cities, with a population of 370,000. Thousands of people from eastern Ukraine, where Russia has concentrated its offensive, have fled there since the start of the war.

The missiles ignited a fire that spread to engulf 50 cars in an adjacent parking lot, officials said. Ukrainian police said people were reported missing. The governor of the Vinnytsia region, Serhiy Borzov, said Ukrainian air defense systems shot down another four missiles over the area.

Before the missiles hit Vinnytsia, the president’s office reported the deaths of five civilians and the wounding of another eight in Russian attacks over the past day.