Traffic on line B of the RER in the Paris region will remain disrupted "until the end of the weekend" after the derailment on Wednesday evening, near the Denfert-Rochereau station.

The traffic on line B of the RER in the Paris region will remain disrupted "until the end of the weekend" after the derailment on Wednesday evening, near the station of Denfert-Rochereau, of a train not carrying passengers, a announced RATP on Thursday. 

"No return to normal before the end of the weekend"

"The RATP does not aim to return to normal before the end of the weekend," she said in a statement. South of the capital, trains will run every 15 minutes between Bourg-la-Reine and Robinson and with a frequency of 20 minutes between Gentilly and Saint-Rémy-lès-Chevreuse. On the central section where the accident took place, traffic was restored on a single track, but the RATP can only run one RER every 20 minutes between Gare du Nord and Massy-Palaiseau, without stopping at Port -Royal and Cité Universitaire (but with a stop at Denfert-Rochereau).

A complementary bus service on part of the line

RATP has set up a complementary bus service between Laplace and Denfert-Rochereau. Three cars on a train carrying no passengers got out of the track at around 7 p.m. Wednesday, leaving no one injured. "According to the first observations on the ground, two cars on the train got off the rail at the level of a track and found themselves straddling the ballast and another track causing significant material damage, detailed the RATP, for whom it is an "extremely rare" accident.

An investigation was launched after the man to determine the exact causes. Initial reports indicate that the train and the track unit had undergone recent preventive maintenance. The teams carried out the first lifting operations on the train overnight, which should last 24 hours.

Once the rolling stock has been removed, the teams will repair the track and the track equipment in the affected area before repairing the damaged catenary and carrying out a complete overhaul of the signaling equipment, said the RATP.