An illegal mine excavation site collapsed in Huize County, Yunnan province, China, at about 4:30 a.m. local time on May 31, 2026, trapping six workers underground [1, 2, 3]. Five workers died from their injuries following the collapse, while one survived and remains in stable condition [1, 2, 3].

Officials have launched an investigation and are assessing accountability for the incident [1, 2, 3]. The mine was operating without authorization, highlighting ongoing safety problems in China's mining sector [1, 2]. Yunnan province is a major coal producer with considerable lignite reserves [2].

This collapse comes days after a deadly gas explosion on May 22, 2026, at a coal mine in Shanxi province that killed at least 82 people and injured more than 120 [1, 2, 3]. Chinese authorities found multiple safety violations at the Shanxi site, including unmarked tunnels and fake doors [3].

Premier Li Qiang chaired a national safety meeting on May 30, urging stricter oversight across high-risk industries including mining. He said, "Frequent accidents in some regions and sectors have caused heavy losses. Officials must step up inspections, crack down on violations and falsification, and tighten oversight in high-risk industries including mining, fireworks, transport and construction" [2].

Rescue teams worked quickly after the collapse. Investigations and safety checks are continuing to prevent further accidents in the region.