The sweeping power outage that hit Spain and Portugal this week has raised questions about the electricity grid in a region not normally known for blackouts.

Spain's national grid operator Red Eléctrica de España has ruled out a cyberattack and pointed to a drop in solar generation as the preliminary cause of the country's power outage, El Pais reports.

Spain and Portugal held emergency Cabinet meetings as evacuations from some public spaces took place. Spain's Interior Ministry has declared a state of emergency for affected regions that need it. Follow DW.