BARCELONA, Spain (AP) — A major power outage in Spain and Portugal has knocked out subway networks, traffic signals and ATMs.

People fail to board a crowded bus after the subway stopped running following a power outage in Lisbon, Portugal, Monday, April 28, 2025. (AP Photo/Armando Franca)

Vendors react outside their shop, during a major power outage in Barcelona, Spain, Monday, April 28, 2025. (AP Photo/Emilio Morenatti)

Traffic lights stopped working following a power outage in downtown Lisbon, Portugal, Monday, April 28, 2025. (AP Photo/Armando Franca)

Passengers wait outside Atocha train station during a nationwide power outage in Madrid, Monday, April 28, 2025. (AP Photo/Manu Fernandez)

A security guard speaks with a woman outside a temporarily closed metro station during a nationwide power outage in Madrid, Monday, April 28, 2025. (AP Photo/Manu Fernandez)

Passengers roam outside Atocha train station during a nationwide power outage in Madrid, Monday, April 28, 2025. (AP Photo/Manu Fernandez)

Passengers inside Lisbon Airport during a nationwide power outage in Lisbon, Monday, April 28, 2025. (AP Photo/Armando Franca)

Spanish power distributor Red Eléctrica said restoring power to large parts of the country could take 6-10 hours. The company declined to speculate on the causes of the blackout Monday.

Spectators roam inside the Madrid Open tennis tournament venue during a general blackout in Madrid, Monday, April 28, 2025. (AP Photo/Manu Fernandez)

A medical staffer relocates a patient during a nationwide power outage in Pamplona, northern Spain, Monday, April 28, 2025. (AP Photo/Miguel Oses)

Vendors use their phone light to select and save some food, during a major power outage in Barcelona, Spain, Monday, April 28, 2025. (AP Photo/Emilio Morenatti)

People board a bus, during a major power outage in Barcelona, Spain, Monday, April 28, 2025. (AP Photo/Emilio Morenatti)

People wait outside a closed train station, during a major power outage in Barcelona, Spain, Monday, April 28, 2025. (AP Photo/Emilio Morenatti)

People buy food at a supermarket, during a major power outage in Barcelona, Spain, Monday, April 28, 2025. (AP Photo/Emilio Morenatti)

The Portuguese National Cybersecurity Center said there was no sign of a cyberattack. The outage hit across Spain and Portugal, including their capitals.

Passengers wait outside Lisbon Airport during a nationwide power outage in Lisbon, Monday, April 28, 2025. (AP Photo/Armando Franca)

Passengers wait outside Lisbon Airport during a nationwide power outage in Lisbon, Monday, April 28, 2025. (AP Photo/Armando Franca)

Later on Monday, Spain’s electricity network operator said it was recovering power in the north and south of the peninsula, which would help to progressively restore the electricity supply nationwide.

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