The civilian security forces told the BBC that at least three people were killed in Spain in an incident related to a massive blackout that closed the country on Monday.
According to Spanish media, they died in the northwest municipality of Tabuadera and were from the same family.
Police are reportedly investigating whether carbon monoxide from the broken generator played a role in the death, but the Civil Security Force was unable to provide details.
Authorities are still working to determine the cause of the blackout that caused the disruption across Spain and Portugal on Monday.
According to Madrid-based newspaper El Pais, the trio who died at Taboadela were a couple and grown-up sons.
Their bodies were found in their beds by care workers on Tuesday, Elle Pai reported.
Other deaths are under investigation, local media said.
The woman in her 50s was found dead Monday night after a fire broke out in a building in the city’s Karabanchell district.
According to the city’s emergency intelligence agency, 13 people were treated for smoke inhalation, including five people who were taken to hospital.
Elsewhere, the woman in her 40s has reportedly died in Valencia, but there is no clear consensus in Spanish media as to the cause of her death.
Media reports suggest that a woman suffering from lung condition died after a ventilator that used lost power during the outage.
However, Elpay cited the local health sources that the woman said she suffered from many health conditions and that she died of natural causes.
The blackout caused great disruption across Spain and Portugal. Andorra and parts of France were also influenced.
In Spain and Portugal, traffic lights stopped operating, subway systems stopped, and businesses were unable to accept card payments.
Initially, the mobile phone network also went down, leaving behind a scramble for a lot of information.
