Output at Naica, which Penoles called Mexico's second-richest lead mine, had been halted "for an undefined period" due to force majeure after serious flooding, the company said.

MEXICO CITY, Jan 15 (Reuters) - Mexican mining group Penoles said workers went on strike at its Naica lead and zinc mine on Tuesday in a pay dispute.

A quarter-of-a-century ago, two brothers drilling a ventilation shaft for the Naica Mine in Chihuahua, Mexico, stumbled across something fantastic. The miners were working 300m underground when ...