Ukrainian officials said Russia “deliberately bombed” a maternity and children’s hospital on Wednesday in the city of Mariupol where 400,000 Ukrainian citizens are reportedly being held hostage by Russia following the attack.

“The occupiers deliberately bombed a children’s hospital in Mariupol,” Ukraine’s Armed Forces tweeted. “The destruction is enormous.”

Video of the aftermath of the attack shows a building with blown out windows and black smoke rising from the debris. Part of the roof appears to be torn off, as well, and what’s left of the building is surrounded by mangled vehicles. Trees that were apparently broken in half by the attack are also scattered throughout the scene.