Police have detained six people in connection with a factory ceiling collapse that killed seven people and injured one in east China's Jiangsu Province, police said Sunday.

The ceiling of a workshop of China International Marine Containers Group in Jiangsu's Nantong City, a leading container manufacturer, caved in at around 5:50 AM Friday, burying eight workers.

Project managers surnamed Gu and Zhang as well as safety inspectors had organized the construction without a license and did not comply with safety rules, said a spokesman with the city's public security bureau.

Police did not reveal the specific identities of the six suspects.

Police and safety officials were continuing to investigate the accident.

(Xinhua News Agency April 4, 2010)