A widespread power outage struck Spain and Portugal on Monday, affecting millions and leading to a series of chaotic incidents. The blackout began around midday, quickly causing complications across both countries. The failure of power grids resulted in significant interruptions to essential services, with internet and mobile phone systems also disrupted. Major train stations, including Madrid's Atocha, were closed, and many trains were cancelled as a precaution.

Traffic control became problematic as traffic lights flickered off, contributing to delays at major airports. People faced challenges in stores, homes, and restaurants, many experiencing sudden darkness, while some found themselves trapped in elevators. Spain's electricity grid reported that power restoration efforts could take several hours, with estimates reaching close to 10 hours at least for some areas.

The origins of the outage remain uncertain, though Portuguese Prime Minister Luis Montenegro has ruled out cyberattack as a cause. Early warnings prompted residents of Madrid to remain indoors, avoid unnecessary travel, and restrict emergency calls to urgent cases only. Spanish media detailed how some hospitals activated emergency protocols, halting routine operations.

By early evening, power began to come back in different parts of the Iberian Peninsula, satisfying residents after several tense hours. The electricity issues notably triggered automatic shutdowns of nuclear plants across Spain. Major disruptions extended to airlines, as EasyJet reported delays and cancellations in Lisbon and Madrid, urging passengers to keep up with local updates.

In retail, some businesses adjusted to the blackouts — Ikea stores utilized backup generators and limited customer access. Meanwhile, organizers of the Madrid Open Tennis event announced the cancellation of scheduled activities. The blackout's impact also reached Andorra and sections of France but spared the Balearic and Canary Islands from similar issues.

As officials continue to investigate the cause of the outage, residents remain on edge, hoping for clarity and swift restoration of services.