The RER line B service has stopped completely between Charles de Gaulle airport and Parc des Expositions.
Rail operator SNCF blamed a signal failure for the issue, which began on Tuesday morning.
Paris airport passengers note: RER B trains suspended all day Tuesday between CDG aiport and Parc des Expositions. Allow more time for travel to airport. Bus replacement service in place between Parc des Expo and Terminal 3 Roissypole…. pic.twitter.com/XQIFvvZEVu
— The Local France (@TheLocalFrance) 2 April 2019
A spokesman for SNCF said: “Around 8:15am on Tuesday, works on a pavement caused water to leak into one of our electrical relay rooms. We therefore had to cut the current and allow time to plug the leak, dry and check the facilities.”
The RER line B is running as normal through central Paris and as far as Parc des Expositions.
Replacement bus services are in place from Parc des Expositions to the airport but SNCF said that it hoped to have trains running again by 5pm on Tuesday.
“Around 8:15, work on a road pavement caused water infiltration into one of our electrical relay rooms,” says SNCF. It was necessary to cut the current, the time to plug the leak, dry and check the facilities.”