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

A massive power outage has knocked out electricity across parts of Spain and Portugal, shutting off traffic lights and causing chaos at airports, train stations and on the roads. Follow for live updates.

Subway networks, hospitals, airports, traffic lights, ATMs and telecommunications systems were crippled in scenes that brought a 21st-century population back to 19th-century conditions.