For millions of people across Spain and Portugal, power was lost in an instant yesterday. Communications came to a halt, water was not running in places, metro systems ground to a standstill, and travellers were strained in airport departure lounges.

A massive power outage appears to have affected large portions of Spain and Portugal Monday. Red Electrica, the operator of Spain's power grid, said on social media Monday morning that voltage has been recovered in substations in several areas in the north,

Portugal's Prime Minister Luis Montenegro has said there was no indication of a cyberattack, but both countries are still looking at all hypotheses.