German train drivers are stepping up strike action.
They were due Wednesday (September 1) to start their third and longest stoppage in the current pay dispute.
Freight services were expected to be hit from the afternoon.
Passenger traffic will then be hit from the early hours of Thursday (September 2).
The strike will run until September 7.
Workers are demanding a 3.2% pay rise, and a bonus related to working during the health crisis.
Deutsche Bahn has said it will OK the pay hike, but the two sides can't agree when it should take effect.
A spokesman for the railway said an offer was in place, but added that the company would not be dictated to over pay deals.