Spain, Portugal and France: Entire cities plunged into blackouts, transport networks shut down and internet is cut off in scenes of mayhem
Spain and Portugal have been hit by widespread blackouts, with millions plunged into darkness amid scenes of mayhem across major European cities.
The power cuts come just days after Spain's power grid ran entirely on renewable energy, including wind, solar and hyrdro power, for a whole day for the first time on April 16.
Spanish officials are urgently investigating the cause of the outages and have said they are looking into the possibility of the blackouts being triggered by a devastating cyber attack.
All of Valencia and Barcelona were left without power, Spain's entire rail network shut down, internet services stopped working and there was chaos on the streets as traffic built up in Madrid and Lisbon.
Madrid's Mayor has urged people to stay where they are as they deal with the disaster, while the president of the city's regional government has called for Spain's prime minister to activate an emergency plan so soldiers can be deployed.
Videos online show railway networks in Spanish cities plunged into chaos, with people being evacuated through tunnels as blackouts hit underground stations and halted trains.
Parts of France also lost power after the outages in Spain and Portugal, the country's grid operator confirmed. Further outages have been reported as far as Belgium, according to the latest information.
The cause of the outages is not yet clear, with the Spanish government saying it is working to 'identify the origin'.
A fire on the Alaric mountain in the south-west of France which damaged a high-voltage power line has also been identified as a possible cause, Portugal's national electric company REN said.
A director at Spain's electricity grid operator said just before 3pm local time that the outage is 'exceptional and totally extraordinary' and will take between six and 10 hours to repair.
Airports were also affected, with emergency generators turned on at Porto and Faro airport, but operations 'limited' at Lisbon, according to officials.
Parts of Madrid's sprawling metro system have been evacuated and traffic lights in the capital have stopped working, posing risk on major carriageways.
The outage is also said to have forced the closure of Barcelona's tram system and stopped some traffic lights in the city from working.
Internet and telephone lines across the country are also down.
Meanwhile play has been suspended at the Madrid Open tennis tournament.
'A crisis committee has been set up to manage the situation [in Spain]. At this stage there's no evidence yet regarding the cause of the massive blackout,' an official briefed on the situation in Spain told Politico.
'A cyberattack has not been ruled out and investigations are ongoing,' they added.
Spain's INCIBE cybersecurity agency is investigating the possibility of the blackout being triggered by a cyber attack.
A spokesman for the European Union Agency for Cyber Security, said in a statement: 'We are monitoring the whole thing very closely, right now the investigation is still ongoing and whether it is a cyber attack has not been confirmed yet.'
The Spanish government said it is working to 'identify the origin' of the blackouts, with officials saying they are still gathering evidence.
Backup generators have meant Spain's hospitals have been spared the worst of the power outages, with videos
Some have suspended non-emergency surgeries, however emergency power supplies have kept essential equipment such as ventilators and cardiac monitors running.
A British expat living in Barcelona told MailOnline that 'nobody seems to know what's going on' in Spain 'because nobody has signal'.
The English teacher said he only found out about the European blackout from British reports.
'I can get signal on my rooftop, but I can't get signal down below. One floor down I have nothing,' they said.
'The traffic lights are still working... The underground is not working apparently. Lots of parts of the public transport are not working.'
Airports were also affected, with emergency generators turned on at Porto and Faro airport, but operations 'limited' at Lisbon, according to officials.
Parts of Madrid's sprawling metro system have been evacuated and traffic lights in the capital have stopped working, posing risk on major carriageways.