(CNN) -- Rescue teams are searching for a missing miner from a coal mine accident in southwest China, state media reported Tuesday.
The accident, which has already claimed five lives, happened at a the Changjiang coal mine in Guizhou province Monday morning, local government officials told the Xinhua news agency.
Thirty-four miners were underground at the time of the accident, according to Xinhua. In addition to the five who died and the one who is missing, 26 fled on their own, and two were rescued, Xinhua said.
Safety authorities are probing into the cause of the accident, and an initial investigation indicated that the accident was caused by gas leak, Xinhua reported.