A devastating accident at the Zarréu mine in Degaña, Asturias, claimed the lives of five miners and left four others injured.

The incident, believed to be caused by an explosion of grisú gas, occurred during a private mineral research project aimed at exploring alternatives to coal.

The victims, aged 32 to 54, were from León province, and their deaths have prompted two days of official mourning in Asturias and Castilla y León.

The mining sector, historically the most hazardous in Spain, continues to report the highest fatality rates relative to its workforce.

In 2024, the extractive industries recorded an average of 27.7 deaths per 100,000 workers, far exceeding other sectors.

This tragedy highlights ongoing safety challenges in mining, despite advancements in technology and protocols.

Authorities have launched a thorough investigation into the causes of the explosion, with experts and officials emphasizing the need for improved safety measures to prevent future disasters.