Three workers remain trapped after a coal mine flood early Saturday in southwest China's Yunnan province, local authorities said. The accident occurred near 1:00 a.m. at a shaft of the Feilongma Coal Mine in the county of Mile in Honghe Hani and Yi autonomous prefecture. Twelve miners were working in the shaft and nine managed to escape, Xinhua quoted a spokesman with the county government as saying. Rescuers are rushing to pump water out to save the trapped men, and the cause of the accident is under investigation, according to the spokesman.