Update | Scores dead in huge factory explosion caused by dust in Jiangsu
Scores killed and almost 200 injured in blast apparently caused by flammable metallic dust in the air at car-wheel polishing plant

A total of 71 people were killed and 186 injured in a huge explosion at a Taiwanese-owned factory in Jiangsu yesterday.
Initial investigations indicated that sparks had ignited dust at the car wheel polishing plant in Kunshan, 50km west of Shanghai, at 7.37am, CCTV said. The factory is owned by the Taiwanese company Zhongrong Plating, it said.
It broadcast images of black smoke billowing from the low-rise factory building, with the injured lying on makeshift wooden beds and being loaded onto trucks and ambulances.
Watch: Scores dead and hundreds injured in Jiangsu factory explosion
"The scene is a mess, it's unrecognisable," one person claiming to be a witness wrote on Sina Weibo.
President Xi Jinping and Premier Li Keqiang called for "all efforts" to be made in the rescue and treatment of victims. Relevant authorities were urged to strengthen workplace safety standards.