Spain's top security and defense officials convened on Wednesday morning to address a blackout that left millions in the dark earlier this week. The power outage, which began on Monday and lasted up to 18 hours in some regions, has drawn scrutiny from both Spain and Portugal as authorities rush to determine the cause.

Prime Minister Pedro Sánchez announced that a commission led by the Ministry for the Ecological Transition would investigate the incident while regulators and agencies launch their inquiries. Much of the discussion involves the national grid operator, Red Eléctrica, and whether their swift transition toward renewable energy has made the grid more susceptible to failures.

In a press conference, Sánchez reassured citizens that there is currently no evidence of a cyberattack on the grid, yet there's a court-ordered investigation underway to scrutinize this possibility. Reports from Red Eléctrica and intelligence agencies are expected within ten days as tensions rise.

As electricity returned to affected areas by Tuesday morning, the Interior Ministry began deactivating emergency measures, though regions like Madrid and Extremadura remained under heightened alert due to unresolved concerns. The investigation continues as millions in Spain and Portugal seek clarity about the blackout that upended daily life.