Rescue operation has entered the third day on Monday after five mine workers were trapped in a flooding accident in northeast China's Liaoning Province, local authorities confirmed.

Three rescue teams have been working in rotation around the clock to retrieve the workers, who were trapped in a flooded iron mine in Jianping County around 3 p.m. Saturday, according to sources with the press office of Chaoyang City, which administers the county.

By early Monday morning, rescuers have not yet located the workers, the sources said.

The mine, operated by Zhongquan Mining Co., Ltd., is a privately-owned one with all required licenses, according to the sources.