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 major power outage in Chile has disrupted copper production at some of the world's largest mines, prompting a state of emergency.