The United States and more than 40 other countries agreed on Thursday to coordinate investigations into alleged war crimes in Ukraine, following what kyiv said was a Russian missile strike that killed civilians far from the front lines .

Ukrainian President Volodymyr Zelenskiy told an international conference that Russian missiles hit two community centers in western Ukraine, killing 20 people, including three children, and injuring many more.

Russia has repeatedly denied any involvement in war crimes or deliberately targeting civilians since its invasion of Ukraine in February. He claims to have launched a “special military operation” to protect Russian speakers and root out dangerous nationalists. Ukraine says Moscow is waging an unprovoked war of conquest.

“This morning, Russian missiles hit our town of Vinnytsia, an ordinary and peaceful town. Cruise missiles hit two community facilities, houses were destroyed, a medical center was destroyed, cars were set on fire,” Zelenskiy said via video link. “This is the Russian act of terror.”

The Russian Defense Ministry did not immediately comment on the information about Vinnytsia.

On Thursday, 45 countries attending the conference in The Hague – the home of the International Criminal Court (ICC) – signed a political declaration to work together on war crimes investigations in Ukraine.

Among the countries are European Union countries, United Kingdom, United States, Canada, Mexico and Australia.

They also pledged 20 million euros to help the ICC, as well as support efforts from the Office of the Prosecutor General in Ukraine and the United Nations (UN).