REN, Portugal's grid operator, said the chaos was caused by a "rare atmospheric phenomenon" in Spain's power system.

Officials are investigating the cause of the outages, while smaller blackouts were also reported in France and Andorra.

Millions of people in Spain, Portugal and parts of France lost power on Monday due to an unknown grid issue, the Spanish ...

An unprecedented power outage across large parts of Spain and Portugal could last into Monday night, experts have warned. The ...

A massive power outage appears to be affecting large portions of Spain and Portugal Monday. Red Electrica, the operator of Spain's power grid, said early Monday morning it had begun its plan to ...

Spanish power distributor Red Eléctrica said that restoring power to large parts of the country after a massive and ...

The impacts are widespread and pervasive; in major cities like Madrid, trains are not running, airports are unable to operate ...

A meme-based social media trend highlighting the differences in American and European life is picking up online.

Traffic lights are seen without power in Madrid as a massive power outage is affecting Spain and Portugal. (Credit: Reuters) ...

Millions across Europe lost power in a massive blackout. Get the latest updates on affected areas, causes, and more here.