A gas explosion at a coal mine in China's northern Shanxi province killed at least 82 people on Friday evening, according to state media reports. The blast occurred at the Liushenyu coal mine in Changzhi City at approximately 7:29 p.m. local time.

Initial reports indicated a much lower death toll, with state news agency Xinhua first reporting eight fatalities and 38 people trapped underground early Saturday. The casualty count rose dramatically as rescue operations continued, with some sources reporting the death toll reaching 90.

Xinhua reported that 247 workers were trapped underground following the explosion. The cause of the blast remains under investigation as rescue work continues at the site.

Chinese President Xi Jinping has called for an all-out rescue effort and a thorough investigation into the accident's cause. Xi emphasized the need to "hold those responsible to account," according to state media reports.

Shanxi province is China's primary coal mining region, with hundreds of thousands of miners extracting approximately 1.3 billion tons of coal last year - nearly one-third of China's total coal production. The province, which has a population of around 34 million and covers an area larger than Greece, has experienced previous mining accidents due to the scale of its coal extraction operations.