Spain's investigation into the power outage that blacked out the entire Iberian Peninsula this week continued Thursday as top security officials met Wednesday.

BUDAPEST, Hungary (AP) — An unprecedented blackout across Spain and Portugal upended the lives of millions across the Iberian Peninsula, a stark reminder of modern society’s reliance on electricity, and how quickly life can descend into chaos when the grid goes down.

The massive power outage on Monday caused economic damage in Spain amounting to approximately €1.6 billion ($1.8 billion), according to the Spanish Confederation of Business Organizations (CEOE). This corresponds to about 0.