A massive power outage across Chile plunged the country's capital Santiago into darkness on Tuesday and knocked out electricity to major copper mines in the country's north, buffeting global metal markets.

A large power outage struck most of Chile on Tuesday, resulting in a curfew until Wednesday morning for the areas hit by the blackout.

A sweeping power blackout has left most of Chile in darkness. Tuesday's blackout sent internet and phone services offline, paralyzed businesses and forced evacuations of tunnels and subways in the South American nation.