The main national railway operator, Deutsche Bahn, said shortly before 1 a.m. — nearly 2 1/2 hours after it first reported the outage — that the problem had been resolved and service was resuming “step by step.”

Germany’s national railway operator said it halted trains across the country on Tuesday evening because of a problem with a communication system

Trains are being held back across Germany and travelers are staying in their seats amid the disruption. It's unclear when the problem will be resolved but the company said…