Lens–Béthune line reopens early after fatal TGV crash at Bully-les-Mines

Eight days after a fatal collision between a TGV high-speed train and a military exceptional convoy at Bully-les-Mines in the Pas-de-Calais department, SNCF Réseau restored rail services on the Lens–Béthune corridor on Wednesday 15 April 2026. The reopening came three days ahead of the 18 April deadline previously communicated by the infrastructure manager, achieved through the continuous deployment of around 40 specialist engineers.

On Tuesday 7 April 2026 at 06:48, a TGV high-speed service operating the Dunkerque–Paris-Nord route struck, at 160 km/h, an exceptional road convoy transporting heavy equipment belonging to the Angers military engineer regiment at the level crossing on rue Lamartine, between Mazingarbe and Bully-les-Mines. The impact was extreme: the lead locomotive unit derailed, the 45-tonne military container was hurled into a nearby residential garden, and debris scattered across several dozen metres around the crossing. There were 246 passengers on board.

The TGV driver, a 56-year-old long-serving SNCF employee from Quimper, described by colleagues as a highly experienced professional approaching retirement, died in the collision. Sixteen passengers sustained injuries. "The entire railway family is in mourning today," said Marc Lambert, Regional Secretary of Sud Rail Lille. SNCF CEO Jean Castex immediately announced that services on this route would be "completely suspended for at least a week." Xavier Bertrand, President of the Hauts-de-France regional council, described it as "a terrible tragedy" and conveyed his thoughts to the victim's family. Transport Minister Philippe Tabarot visited the site within hours of the accident.

Restoring the railway infrastructure required a sequential operation in which each phase was conditional on the completion of the one before it.

Night of 7–8 April — Immediate disconnection of the overhead catenary (overhead electric power supply lines) across the accident site, an essential prerequisite for safely recovering the locomotive.

8 April — The damaged locomotive unit was separated from the passenger coaches. The coaches were then towed clear of the accident zone.

9 April — A specialist 108-tonne railway crane, transported from the maintenance depot in Dijon and capable of lifting up to 150 tonnes, arrived on site. The TGV locomotive was raised and extracted from the tracks. Simultaneously, the 45-tonne military container was removed from the residential garden into which it had been thrown.

10–13 April — Critical infrastructure reconstruction: 700 new sleepers were laid, approximately 100 metres of rail replaced, and the entire level crossing rebuilt from scratch — including light signals, barriers, road surfacing and warning lights. Around 40 SNCF Réseau engineers from the Hauts-de-France and Grand-Est regions worked continuously, including through the Easter bank holiday weekend.

14–15 April — Dynamic safety tests and technical sign-off on the rebuilt track section before commercial services resumed.

On Monday 13 April, SNCF Réseau issued a press release confirming the 15 April restart date, three days ahead of the original schedule, praising the "exceptional commitment" of its teams. The Lens–Béthune corridor handles up to 50 trains on a typical weekday, including eight TGV workings, falling to 26 on Saturdays and 20 on Sundays.

Two restrictions apply at reopening. First, Mazingarbe station will not be served until platform repairs are completed; the station's infrastructure sustained damage in the accident. Second, the level crossing on rue Lamartine remains closed to road and pedestrian traffic for the rest of the week while roadside reconstruction is finalised. SNCF Réseau says both restrictions are expected to be lifted within days.

On the judicial front, the lorry driver was placed in custody on 7 April and formally charged on 8 April with manslaughter by driver and deliberate breach of a safety obligation, as well as aggravated involuntary wounding. A formal judicial investigation has been opened and assigned to the inter-departmental criminal police unit for Pas-de-Calais. According to initial information, the level crossing was functioning normally at the time of the accident. The precise circumstances under which the military convoy crossed the track are the subject of the ongoing investigation. SNCF has also set up a psychological support unit for employees affected by the accident.

The collision inevitably reignites the debate around level crossing safety on the French rail network. France still has several thousand active public level crossings. According to BEA-TT (the French investigation bureau for land transport accidents), level crossing collisions account for a significant proportion of serious railway accidents in the country. SNCF Réseau operates an ongoing programme to eliminate or upgrade the most accident-prone crossings, embedded within its 2026 network regeneration plan — a €6 billion investment programme covering 1,700 major works contracts. The involvement of a military exceptional convoy at Bully-les-Mines also raises specific questions about the authorisation and crossing procedures for oversized vehicles at level crossings, which are likely to be examined in depth by the investigators.

Sources:

• SNCF Réseau, press release, 13 April 2026