Russian forces struck a theater where “hundreds” of civilians were sheltering in the besieged port city of Mariupol on Wednesday, local officials and Ukraine’s minister of foreign affairs said. There was no immediate word on deaths or injuries.

“The building is now fully ruined”, tweeted Minister Dmytro Kuleba, along with a purported photograph of the destroyed theater. “Russians could not have not known this was a civilian shelter”.

On Thursday morning, an official from the Mariupol mayor’s office said the “the bomb shelter” withstood the attack and there are survivors in the theatre, but it remains unclear how many victims there are.

“After a terrible night of ignorance on the morning of the 22nd day of war finally good news from Mariupol! The bomb shelter withstood. People come out alive!”, - tweeted Sergiy Taruta·