Huge power cut in Spain and Portugal has left millions without electricity, but officials confirm there's no sign of a cyber attack behind it. Instead, a rare atmospheric phenomenon, caused by sudden temperature changes,

BARCELONA, Spain (AP) — A blackout brought much of Spain and Portugal to a standstill Monday, halting subway trains, cutting phone service and shutting down traffic lights and ATM machines for the 50 million people who live across the Iberian Peninsula.