Chile's power grid and major copper mines slowly came back online on Wednesday morning after a major outage hit the world's top producer of the metal, with power firms working to restore the system to full operation,

A sweeping power blackout left most of Chile in darkness for several hours. Tuesday’s blackout sent mobile services offline, paralyzed businesses and forced evacuations of buildings and subways in the South American nation.

Chile’s capital city, Santiago, and major copper mines in the country’s north were hit by a massive power outage on Tuesday, impacting global metal markets. Chile’s government declared a state of emergency and imposed a curfew from 10 P.