The Mariupol City Council said Friday that about 300 people were killed after the Russian attack on a drama theater.
The Mariupol City Council wrote in a Telegram post that the theater had become a shelter for hundreds of residents before the bombing.
Ukrainian officials have said hundreds of people are still missing after the collapse.
Forbes could not independently verify the death toll.
Russian forces have deliberately destroyed the city of Mariupol, making communication with officials in the city difficult. Mariupol residents risk their lives every time they leave shelter, as Russian forces have hit the city with near constant bombardment for days. The International Criminal Court is investigating alleged Russian war crimes after attacks on civilian infrastructure in Ukraine.
It's not clear if emergency workers have finished clearing the ruins of the theater, as the city has been devastated.
The Mariupol City Council said in a Telegram post that they will never get friends, neighbors, relatives and loved ones back.
Following Russia's deadline offer, Ukraine says it won't surrender Mariupol.
According to Forbes, the Ukrainians have launched counteroffensives around 10,000 Russian troops.
Russian air strikes demolish a maternity hospital and houses in Mariupol.