A fire started by vandals at a Paris train station has led to cancellations and delays.
The arson attack at the French capital's Gare du Nord station was caused by a "malicious incident," the SNCF national rail service said.
A police official said the fire was started in an electrical station, causing a power cut to the rails. Passengers travelling through the station are in no danger, the police official said, adding that an investigation has been launched.
Passengers travelling on Eurostar trains from France to the UK are among those caught up in major delays. Two trains from London St Pancras to Paris have been cancelled.
Several passengers tweeted their dismay at both the hold up and the lack of information that was being provided to them.
Emma Malloch, another passenger, tweeted saying she had been sitting for more than 45 minutes with no air conditioning in temperatures greater than 37 degrees.
"No one knows anything," she said, adding that children, elderly people, and those with breathing problems on her train were finding it particularly hard.
The disruption is continuing this evening.Eurostarsays it will provide information as it becomes available.