More than 10 million people have had power cut to their homes and businesses across Cuba after the country's national electrical grid collapsed for the second time in a week.

Spain has been hit with a nationwide mobile phone network outage just weeks after electricity blackouts swept the country.

Power was restored to the majority of Chile’s 19 million people on Wednesday following the country’s most disruptive blackout in 15 years. The government confirmed the restoration as authorities lifted a strict curfew that had been imposed after the outage left 98% of the population without electricity.