Pic: Reuters People gather outside Barcelona-Sants train station during a power outage. Pic: Reuters Blackouts in Spain and Portugal: Follow latest updates ...

Passengers react as they wait for news of train departures, at Sants train station in Barcelona, Spain, Tuesday, April 29, 2025. (AP Photo/Emilio Morenatti) ...

Passengers crowd the train accesses at Sants train station in Barcelona, Spain, Tuesday, April 29, 2025. Credit: AP/Emilio Morenatti What don't we know?

Passengers crowd the train accesses at Sants train station in Barcelona, Spain, Tuesday, April 29, 2025. (AP Photo/Emilio Morenatti) ...

Passengers react as they wait for news of train departures, at Sants train station in Barcelona, Spain, Tuesday, April 29, 2025. (AP Photo/Emilio Morenatti) What should I do if the power goes down?

Here’s what to know: Passengers crowd the train accesses at Sants train station in Barcelona, Spain, Tuesday, April 29, 2025. (AP Photo/Emilio Morenatti) What happened?

Passengers sleep and sit on the ground as they wait for news of train departures, at Sants train station in Barcelona, Spain, on April 29. Emilio Morenatti/Associated Press ...

A police officer helps travellers at the Barcelona-Sants railway station in Barcelona. Picture: AFP ...