Glencore warned that Europe’s energy crisis poses a substantial threat to supply.

Some 92 soldiers were working at the scene, as well as specialists and rescue dogs.

Although no one was hurt in Wednesday's "operational incident," Codelco said it had launched an investigation to determine the cause.

Lundin said Monday it had halted development work near the site, but that the sinkhole didn’t affect the community, workers or its annual output guidance.

The company also warned of a hit from inflation and supply-chain bottlenecks in the coming months.

Once considered a pariah, Bolivia is quickly gaining a reputation as an exciting jurisdiction for mineral exploration.

The sinkhole occurred at Alcaparrosa, one of two underground mines that make up Ojos del Salado, which in turn is part of the Candelaria complex.