At least six workers were buried after a construction site collapsed Monday night in east China's Hangzhou, capital of Zhejiang Province, local authorities said.

The accident happened at around 9:20 p.m. Monday in the east section of Hongshiwuxian road near Qiantang River.

Local fire department said the person who called police said there were 10 people buried but the factory reported six.

Firefighters are on their way to rescue.