The roof of the two-storey building caved in on construction workers. The structure was around 3,000 square metres in area. 23 people were trapped. Local authorities launched emergency rescue measures. More than 150 rescue workers and 24 fire engines were dispatched to the scene. At least seven died. Probably they were construction workers.14 people are being treated in hospital as rescue workers search for more survivors. Two were known to be still trapped in the ruins. Authorities quickly sealed off the area with a huge security presence, preventing journalists from getting close.
Party chief of Shanghai Li Qiang and Shanghai Mayor Ying Yong went to the site in the afternoon, urged relevant departments to investigate the cause of the accident. Previously there had been complaints about the renovation work. China has suffered some industrial accidents in recent months typically blamed on low-quality construction and the flouting of safety rules.