Metalworking shop explosion injures nine

This is the terrifying moment as metalworking shop exploded in Shenzhen, a city in southern China's Guangdong Province.

Nine people were injured when a ball of fire suddenly burst out and engulfed several people standing in front of the shop. People can then be seen fleeing, some tossing off burning clothing.

The fire was eventually extinguished by firemen and the case is now being investigated by authorities.