Rescuers in northern China are searching for survivors after a coal mine explosion killed at least 82 people. The blast occurred Friday evening at the

China’s world-beating coal production has helped shield its economy from the worst of the Iran war shock. Now the deadliest mining disaster in years is raising uncomfortable questions about the cost of that drive.

At least four people are dead and 90 others are trapped underground after carbon monoxide levels “exceeded limits” in a coal mine in northeast China on Friday night, according to state media.