4 killed, 2 poisoned at Chengdu iron mill  willowy ladies. Korean teasing ingenues.

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Chengdu (CNS)-- Four people were killed and two others were poisoned by gas Thursday night at an iron smelting workshop in Chengdu, Sichuan province, according to the Sichuan Provincial Work Safety Bureau.

The poisoning happened at a workshop run by the Panchenggang Construction Company in the city's Qingbaijiang district.

The incident began when a worker was poisoned during a safety check of the workshop's machinery. Five workers who came to his rescue were also poisoned.

All six workers were sent to nearby Panchenggang Hospital. Four of them died at the hospital and two were transferred to another hospital.

An investigation of the accident is still underway.