At least one person was killed but people are feared trapped under the rubble. It is not known what caused the collapse or how many people were in the building at the time. There are 14 apartments in the building. Some residents, that about 27 to 30 people , were inside during the collapse. Three people were rescued.The top three floors of the building had been built illegally, Istanbul Governor Ali Yerlikaya told to media.
There was a textile workshop on the ground floor of the building that was operating without a license.Scores of Disaster and Emergency Management Presidency (AFAD) personnel, fire crews, police and emergency medical teams were on the scene in Cevizli neighborhood. Additional rescue teams were on their way from Sakarya and Bursa provinces to provide additional support. There was no explosion preceding the collapse, but that the building, which was very old, collapsed on its own. Dramatic footage of the incident shows the building flattened to the ground. Roof tiles, long bars of wood and cement are scattered across the street. President Recep Tayyip Erdoğan sent Interior and environment ministers to the site.