(Photo : The rescue scene of the accident)

The accidental chemical leak took place approximately 11:00 (0300 GMT/ 4:00 a.m. BST)  local time, as authorities' release that there were 26 more people injured in addition to the 15 who were reportedly killed.

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Immediately after the accident, 200 firefighters were dispersed in the location to handle the fumes which resulted from the chemical leak. It was shown in a local news photo that the fire fighters were blasting water on the ground to control the leak and were also using equipment to monitor the environmental impact.

Observers noted that the country's safety regulations set especially for chemical handling are often disregarded by the local government units to make way for enhancing and furthering economic growth and development.

The incident was reported at Shanghai's north district area of Baoshan, the storage unit was said to be ran by Shanghai Weng's Cold Storage Industrial Co. Ltd., the information was released on Shanghai's official account on Sina Weibo. Sina Weibo, another Chinese-ran microblogging website is one of the most widely read site in China.

Out of the 15 injured, six of them are reported to be in critical condition, said the government.

At the moment, China holds the second largest economy in the world, but is not doing very well in terms of safety regulation in the workplace. Only in June, around 120 persons died, with another 77 injured when a chicken dressing plant located in the north eastern part of Jilin province was consumed with fire.

A lot of the fatal industrial-related accidents in China occur in the large coal mining industry. A total of 1,300 people died in 2012 alone in accidents that were related to floods, collapse, and explosions in the mines.

China is currently the biggest consumer of coal in the world, and is soon to become the biggest in terms of electricity derived from coal, with a generation projection of 1.95 trillion kilowatt-hours annually.  An average of 68 percent of the country's electricity comes from power plants running on coal.