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.

States of emergency throughout Spain and Portugal are being lifted on Tuesday, except in Valencia, as the Iberian Peninsula starts to regain power after an unprecedented outage on Monday.  The outage hit Spain,

It may take a week for the network servicing both countries to be fully repaired. Meanwhile, millions are without power.