Power went out across Spain and Portugal on Monday, cutting train, cell phone and internet networks, clogging roads and trapping people in elevators before electricity started to return to some areas hours later.
Spanish Prime Minister Pedro Sanchez said after an emergency government meeting on the situation, “we have no conclusive information about the reasons for this outage”.
He said no hypothesis could be ruled out, warning the public “not to speculate” because of the risk of “misinformation”.