At least 17 people, including staffers and patients, were injured after a maternity hospital in Mariupol was struck by Russian forces, Ukrainian officials said Wednesday.

Images of the aftermath show injured pregnant women being carried from the scene. Videos shared on social media and verified by The Washington Post show damage to a clinic, with windows blown out and medical gear destroyed.

Mariupol’s city council said the destruction was “colossal,” and Ukrainian President Volodymyr Zelensky called it an “atrocity.”

“What kind of country is this, the Russian Federation, which is afraid of hospitals and maternity hospitals and destroys them?” Zelensky said in a video address late Wednesday, during which he switched from Ukrainian to Russian, making a direct appeal to a Russian audience.

The reported assault occurred after the World Health Organization said it had verified 18 attacks on health facilities in Ukraine.