At least 68 people were killed in an early morning explosion at a factory near Shanghai that makes automobile parts for General Motors, once again raising concerns about workplace safety in China.
Within hours of the explosion Saturday in the Kunshan, Jiangsu province, two executives of the Taiwanese company that owns the plant, Zhongrong Metal Products, were detained for questioning.
The factory produces aluminum alloy tire rims. State media said the accident was most likely caused when sparks ignited a highly flammable powder used in polishing the hubs.
The explosion took place at 7:37 a.m. local time Saturday, when the factory was running with about 200 workers on...