Overview

• Traffic on the Atlantic high-speed line was limited to a single track at reduced speed for part of the afternoon after the impact south of Montparnasse.
• The affected TGV, damaged after hitting the stones at low speed, was evacuated and returned to Paris Montparnasse.
• Full circulation was restored by early evening, though SNCF warned of knock-on delays continuing through the night.
• Several services to western and southwestern destinations recorded multi-hour delays, reaching up to 3 hours 50 minutes on a Paris–Bordeaux train.
• SNCF corrected its initial description of the obstacle from a concrete block to a few stones located about 5–6 kilometers south of Montparnasse in the Marcoussis–Massy sector.