Commuters across Britain faced severe disruptions this morning after a nationwide fault hit the communication system used between train drivers and signallers. National Rail confirmed the issue, which caused delays, cancellations, and altered services for multiple operators, with disruption expected to last until midday.
The fault affected the GSM-R radio system, which enables digital communication between drivers and signallers. Network Rail said a manual backup log-in system was being used, causing delays of a few minutes at the start of journeys. The problem was under investigation, and services were gradually being reinstated.
Major operators including Gatwick Express, Great Northern, Southern, Thameslink, Southeastern, and South Western Railway reported cancellations and delays. The Elizabeth line, serving Reading and Heathrow, was also impacted, while ScotRail allowed passengers to travel via any reasonable route. Great Northern services resumed to Moorgate station after earlier diversions to King’s Cross.
National Rail advised passengers to check before travelling and allow extra time. By mid-morning, the fault was being resolved, but knock-on delays continued for many services.
