Overview
- - The operator RATP suspended RER A trains between Nation and Auber after a serious person-related incident at Châtelet–Les Halles, and reported heavy disruption on the rest of the line.
- - Emergency teams, including firefighters and medical services, responded at the station, and the line signaled a target for service to restart in the evening with lingering delays expected.
- - One train was left standing at Châtelet–Les Halles on the branch toward Cergy–Le Haut, adding to the bottleneck at the network’s key hub.
- - RATP urged riders to change routes, advising Metro Line 1 inside Paris and directing travelers to reach RER B by using RER D from platform 4 toward Orry-la-Ville for connections to Gare du Nord and Charles-de-Gaulle Airport.
- - The A-line turmoil followed a separate person-related incident on RER B at Laplace in Arcueil that shut service between Denfert-Rochereau and Bourg-la-Reine for more than three hours earlier in the day.