Overview
- A failure of the digital railway radio system GSM‑R forced Deutsche Bahn to hold trains at stations nationwide late Tuesday, stopping long‑distance, regional, S‑Bahn, private and freight services.
- DB technicians identified the fault overnight and used an emergency fallback system so the first trains resumed around 00:30, but delays and some cancellations persisted into the morning.
- Security authorities reported they currently suspect a problematic software update or a component swap rather than sabotage, and Deutsche Bahn has not yet published a full technical root‑cause report.
- Thousands of passengers were stranded, many complained of poor station communications, and DB issued taxi and hotel vouchers while politicians and freight operators demanded a transparent, independent review.
- Separately, a multi‑day failure of an ageing interlocking (Stellwerk) on the Köln–Hagen route near Wuppertal remains unresolved, underscoring broader infrastructure decay and the slow rollout of GSM‑R’s planned successor, FRMCS.