The head of a region in Spain says a appears to have been caused by a cyberattack. The whole of Spain, as well as parts of Portugal and reportedly France, have been afffected by Monday's outage.
President of the Andalusian regional government, Juan Manuel Moreno, confirmed that, according to the information provided to him by the regional cybersecurity centre, "everything points to a blackout of this magnitude only being due to a cyberattack". However, he confirmed he had not received any communication from the Spanish government regarding the widespread power outage, saying that he reached this conclusion "solely based on our own data". Mr Moreno also expressed concern about the duration of the blackout, saying: "We'll see how long this will last because the generators only have a 24-hour capacity."
He indicated that hospitals are operating normally because they have power generators.
Portugal's National Cybersecurity Centre says there is "no evidence has been identified to date that points to a cyberattack", according to reports.
Spanish Congress has cancelled all activity scheduled for Monday.
Major cities including Madrid, Seville and Lisbon have been hit by the power outage, leaving residents without electricty and mobile signal.
Parts of the Spanish capital's underground have been evacuated and traffic lights are not working, according to local media.
Spanish power grid operator Red Electrica says it is working with energy companies to restore power. An official said it could take between six to 10 hours for the issues to be fully resolved.
The incident has sparked chaos across Europe, with flights and trains cancelled.
Portuguese airline TAP Air has warned passengers not to head to airports until further notice.
Backup generators have been activated across Spain's airports, acccording to Aena, the public body that owns and operates the majority of airports in Spain.
The issues have also impacted the Madrid Open tennis tournament where play has been suspended.
The EU Commission has confirmed it is in contact with national authorities in Spain, Portugal and the bloc's powwer grid body, ENTSO-e.
Talks are being held between officials to understand the underlying cause of the outage and its impact.
British Overseas Territory Gibraltar appears to be the only region on the Iberian peninsula with electricity.
You may also like
PSG star Vitinha makes Premier League transfer admission despite first spell
'I had nowhere to go': Woman chased by mob of pro-Israel supporters in New York
Vaibhav Suryavanshi becomes youngest to score an IPL ton. Check full list of records the 14-year-old cricketer broke
Indore: Daily College Of Business Management Wins MPL Season-3 Finale
Lana Del Rey reveals she kissed huge US singer in new song as she announces big career change