TOKYO: A structural collapse occurred at a demolition site in an industrial area in Japan's Kawasaki City on Monday (April 28), injuring four workers and leaving one trapped.

At around 9:30 a.m. local time, emergency services received reports of the structural collapse. Firefighters and police rushed to the scene and found that part of the structure being dismantled had collapsed, involving five workers in total, national broadcaster NHK reported.

The remaining worker is believed to have fallen into the basement level and is still awaiting rescue efforts, according to the report.

The site is located in a reclaimed area of the Keihin Industrial Zone, surrounded by logistics warehouses and other industrial facilities.

Authorities are investigating the cause of the accident. - Xinhua