Nine people were killed when the warehouse collapsed in Harbin. What is the specific cause of the accident?

At 9 o'clock on the morning of August 4, some buildings of a simple four-story warehouse in North Metal Trading Market, No.3 Cheng 'an Street, Daoli District, Harbin collapsed. Nine people were trapped. After the accident, the public security, fire control and 120 emergency departments rushed to the scene for rescue. As of 4: 50 on August 5, rescuers have searched for all 9 trapped people through day and night search and rescue. Unfortunately, no survivors were found at the scene, and all nine people were killed. No secondary disasters occurred.

After the accident, Harbin Emergency Management Bureau immediately organized more than 350 rescuers, carrying more than 900 sets of life detectors, search and rescue dogs, various special equipment and more than 20 heavy rescue vehicles, and rushed to the scene to fully carry out rescue and disposal work. The Harbin Municipal Health and Health Commission also dispatched 45 medical staff and 9 ambulances to the scene to carry out on-site medical treatment and first aid work in time.

We have been confirmed by the Propaganda Department of Harbin Municipal Committee that the building involved in the incident has a history of many years, and there have been no similar problems before. The building was being renovated before it collapsed. The builders tore down the wall and knocked it down. ? Now, the surrounding area of the incident building has been blocked by a yellow enclosure, and rescuers are demolishing some buildings. The collapsed building has four floors, and the lifting frame on the first floor is relatively high. The wall of the warehouse main body looks very thin. The warehouse involved covers an area of about 1643 square meters. Decorate the warehouse from August 20 16 to March 20 17. We asked some merchants nearby and learned that the warehouse was actually two floors before, but it was later rebuilt.

At present, the intense and orderly search and rescue work at the scene of the accident has all ended. Relevant departments in Harbin have set up a special team to properly handle the aftermath of the deceased. The relevant person in charge of the incident building has also cooperated with the police to collect evidence. The specific cause of the accident is still under investigation. It will be announced to the public as soon as the investigation and evidence collection are clear.