Power was mostly restored across the Iberian Peninsula Tuesday, after a massive outage hit Spain and Portugal, grounding aircrafts, and disrupting traffic.

Much of Spain’s power grid was operating normally on Tuesday, a day after a blackout affected critical infrastructure across the Iberian Peninsula.

Several airports, including Madrid airport, which is Spain's busiest, had no electricity, El Mundo reported. Major cities including Barcelona, Seville and Valencia were without power. Parts of France were also affected by power loss.