See photos of the massive power outage that affected millions of people in Spain and Portugal due to an "induced atmospheric vibration."

A blackout has brought much of Spain and Portugal to a standstill, affecting millions of people. The Spanish power distributor calls it “exceptional and extraordinary."

By Emma Pinedo, Catarina Demony and David Latona MADRID/LISBON (Reuters) -Power started returning to parts of the Iberian peninsula late on Monday after a huge outage brought most of Spain and Portugal to a standstill,