Fifteen miners died after inhaling toxic gases in a graphite mine in central China, state-run media reported on Saturday.
The deaths occurred Friday afternoon at the mine in the town of Yuanlutang in Hunan province, Xinhua news agency said, quoting the local government.
The report said no further details were immediately available on the accident, which it said was under investigation.
China's poorly regulated mining industry is among the world's deadliest, with thousands of miners killed every year in underground explosions, cave-ins, mine floods and gas leaks.