Most residents had power restored by midnight but the situation remained unstable. President Gabriel Boric blamed power companies for not acting faster.

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.

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