Eight people were confirmed poisoned seriously at a gas leakage accident that happened Tuesday morning in Yulin County of northwest China's Gansu Province, a newspaper based in this provincial capital reported Thursday.

At around 11:00 Tuesday morning, a gas pipe at a steelmaking workshop of the Yuzhong Iron and Steel Co., Ltd. in the county cracked suddently when eight people were working at the scene.

The ensuing gas leakage left the eight, seven male and one female, seriously poisoned, the Lanzhou Morning Post said.

Six of the eight injured, including the woman and five men, have been out of danger, with the remaining two male workers still being treated in the ICU (intensive care unit) of a local hospital, the newspaper added.

The cause of the accident is under investigation.