Officials in Spain and Portugal are racing to restore electricity after a huge power outage that grounded flights, paralyzed metro systems, disrupted mobile communications and shut down ATMs, upending

An unprecedented blackout brought much of Spain and Portugal to a standstill Monday, stranding thousands of train passengers and leaving millions of people without phone and internet coverage and access to cash from ATMs across the 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.