Turkish officials say at least 17 miners are dead and more than 200 trapped after an electrical explosion Tuesday at a coal mine in the western town of Soma, south of Istanbul.
Rescuers are pumping fresh air into the mine as they struggle to get the trapped miners out.
Officials say an electrical unit exploded, causing a fire inside the mine.
Turkey's coal mines are notoriously dangerous, prompting some in parliament to demand an investigation into poor safety conditions.
A Turkish newspaper has quoted one lawmaker as saying he is sick of going to miners' funerals.
Some information for this report was provided by AP and Reuters.