A widespread power outage hit Spain and Portugal, affecting millions of people who live across Europe's Iberian Peninsula.

Millions were plunged into darkness in Europe on Monday as a massive power outage impacted parts of Spain, France and Portugal, but electricity was largely restored by Tuesday morning. The blackout wreaked havoc on travel across the three countries,

Electricity had been restored to most of Spain and Portugal early on Tuesday after huge nationwide blackouts, although authorities were still trying to find out what caused the sudden outage.