BEIJING, May 23 — The death toll from a gas explosion at ‌a coal mine in northern ​China’s Shanxi province has jumped to 90, state media CCTV reported on Saturday.

The gas ‌explosion occurred late on Friday at the ​Liushenyu coal mine in Qinyuan county, with 247 workers on duty underground, state media Xinhua reported earlier in the day.

Chinese ​President Xi Jinping called for authorities to “spare no effort” in treating the injured and conducting search and rescue operations, while ordering a thorough investigation into the cause of the accident ‌and strict accountability in accordance with the law, ⁠according to Xinhua.

Premier Li ⁠Qiang echoed the instructions, calling ⁠for timely and accurate release of ⁠information and ⁠rigorous accountability.

Rescue operations were ongoing and the cause of the accident was under investigation, according to ⁠the local emergency management authority in Qinyuan.

China has significantly reduced coal mine fatalities – often caused by gas explosions or flooding – since the early 2000s through more stringent regulations and safer practices. The Liushenyu incident, ⁠though, was one of the deadliest reported in China in the past decade.

Executives of the company ⁠responsible for the mine have been detained, Xinhua reported.

Earlier Xinhua ⁠had ⁠reported only eight dead, with more than 200 people brought ​safely to the surface. ​It did not explain ‌the jump in the death toll. — Reuters