Train services in Germany were resuming on Wednesday, the state-run rail operator said, after a breakdown in the railway radio communication system brought trains across the country to a standstill.
All trains in Germany were "immobilised at stations" on Tuesday due to the technical problem, Deutsche Bahn said.
The operator said later on its website that the glitch had been "resolved" and services were resuming, but warned passengers to expect some disruption to services.
After decades of underinvestment which have led to trains often running late, Germany is trying to rapidly modernise its ageing rail network with massive public investment.
Deutsche Bahn said its technicians had been "working flat out" to fix the issue.
