First victims of Iberian blackout confirmed in Spain as fallout rumbles on

A sweeping power outage left millions of people across Spain, Portugal and parts of France without power on Monday. Authorities are still unclear about what caused the incident. Follow for live updates.

In Spain, the state of emergency has been lifted in all regions where it was put in place by Prime Minister Pedro Sánchez the night before, except in Valencia, where authorities have requested it to remain in effect until further notice.Meanwhile, Sánchez excluded the possibility of a terrorist attack as one of the potential causes for the outage, and announced a thorough investigation into the event, which he described as "unthinkable" in the southern European country.His Portuguese counterpart, Luis Montenegro, said authorities were investigating the disruption. However, there was no indication of a cyberattack.First casualties believed to be related to the blackout have been reported by Tuesday afternoon. One person has died in the Carabanchel neighbourhood of Madrid after a fire caused by a candle, while in Galicia, a married couple and their son have died from carbon monoxide inhalation in Taboadela.Chaotic scenes showed families sitting in their homes, lit by candlelight, as traffic was disrupted, thousands were stuck in metro tunnels, businesses shut down, and people were unable to make calls on mobile networks or pay without cash.Revisit today's top updates as power slowly returns to communities and authorities begin to piece together what could have caused the widespread blackout.