Spain’s High Court will investigate whether a cyberattack may have caused one of Europe's most severe blackouts which plunged the Iberian peninsula into darkness.Power has now returned to households in Spain and neighbouring Portugal.

BARCELONA, Spain (AP) — The blackout that engulfed the Iberian Peninsula on Monday was chaotic and stressful for many. But it had a silver lining: People were forced away from their screens and into the “real” world, connecting with the present and one another. Some Spaniards and Portuguese embraced their day without power.