Deutsche Bahn halted trains across Germany late Tuesday after a nationwide failure in the GSM-R digital railway radio system, which the operator uses for internal communications across the network. Trains were held at stations after Deutsche Bahn reported the disruption at about 10:30 p.m. local time, leaving passengers queueing at information desks and searching for alternative routes. The operator said shortly before 1 a.m. that it had resolved the problem and services were resuming “step b...

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