Spain, Portugal, France and Andorra suffered power outages on April 28, but not Belgium, Greece and the Netherlands, contrary to online claims.

Electricity returned to much of Spain and Portugal a day after a blackout affected critical infrastructure. The cause of the outage remained unclear.

Spain and Portugal are reeling from a massive, unexplained power outage that knocked out traffic lights, caused chaos on roads and in airports, and prompted both countries to declare a state of emergency.