1 injured, 12 missing after factory explosion in China

One person was injured and 12 others are missing after an explosion at a chemical factory in China's northern Tangshan Hebei Province today.
The blast took place at the chemical plant in Tangshan City. The plant mainly produces water-proof explosives for mining.
An initial investigation showed that 13 people were working inside the factory at the time of the blast, state-run Xinhua news agency reported.