Two people were seized by police in Jinzhou, north China's Hebei Province on Friday after an explosion at a chemical processing mill killed five people.
The explosion occurred in an orchard in Donglizhuang township, Jinzhou, at around 11 a.m. Thursday, according to the city government. Five people were killed and another severely injured.
The mill owners, Zhang Chaoyi and Wang Haitao are in police custody, the government said.
Jinzhou invited four hazardous chemicals experts to help deal with the aftermath and prevent secondary disaster.
The initial investigation revealed that the plant was producing dye intermediate, as traces of benzene, methylbenzene, naphthaline and anthracene were found, most likely used as raw materials. Dye intermediate is used in pharmaceutical, pesticide and material industries.
