Spain and Portugal declared a state of emergency after an all-encompassing power failure struck those nations as well as Belgium, Andorra and France.

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."

Several airports, including Madrid airport, which is Spain's busiest, had no electricity, El Mundo reported. Madrid's mayor, José Luis Martínez-Almeida, urged residents to limit their movements and stay off roads. Major cities including Barcelona, Seville and Valencia were without power. Parts of France were also affected by power loss.