A communications outage triggered by scheduled maintenance on Germany’s railway system caused all train services to halt late Tuesday, leading to widespread travel disruptions across the country, officials said Wednesday.

Deutsche Bahn, the federal government-owned railway operator, confirmed that a component replacement in the GSM-R digital communication system, which facilitates internal communication on the network, resulted in the network-wide failure. The outage brought all trains to a standstill shortly before midnight, stranding passengers in stations and along routes nationwide.

Service gradually resumed approximately two hours later after midnight, although some delays persisted into Wednesday morning. Deutsche Bahn described train operations as running "largely seamlessly" by mid-morning.

Travelers faced significant inconveniences during the interruption. Long queues formed at information counters as passengers sought guidance on alternatives or accommodations. The operator provided taxi and hotel vouchers where possible and arranged for waiting passengers to remain aboard stationary trains. However, customers reported inadequate communication and limited availability of hotel rooms, causing some to endure extended journeys through the night.

Philipp Nagl, head of Deutsche Bahn’s DB InfraGO infrastructure division, said the malfunction stemmed from the scheduled replacement of a technical component but did not provide further detail. He indicated that a thorough investigation was underway to determine precisely how the maintenance precipitated the system failure.

The railway company offered its apologies for the disruption and acknowledged the impact on travelers, promising measures to prevent similar incidents in the future. The incident has drawn criticism over the operational shortcomings and raised questions about the reliability of scheduled maintenance protocols on Germany’s critical rail infrastructure.