At least 20 workers were killed after a 63-meter-tall scaffold collapsed at a construction site in Anyang City of central China's Henan Province Wednesday morning.

The accident occurred at around 9 am when workers of the provincial No. 7 construction company were removing the scaffold from a newly-built chimney in a local company.

An unidentified number of injured have been rushed to major hospitals of the city, rescuers said.

The cause of the accident is being investigated.

(Xinhua News Agency May 12, 2004)