A train route which links Aberdeen to some of the UK’s biggest cities faces the axe.
CrossCountry is proposing cutting the service from the Granite City to Penzance.
The route, starting at 8.20am each day, includes stops at Edinburgh, Newcastle, Leeds, Sheffield, Birmingham and Bristol.
North-east transport body Nestrans will be writing to the operator to voice its frustration.
Councillor Ian Mollison, who sits on the Nestrans board, said: “Aberdeen should not be treated as a minor branch line station. More than half a million people live in the North-east.
“We deserve the best transport links.”
A consultation is currently ongoing about the changes.
It is due to run until Monday January 2, 2017.
The service to Penzance runs once a day and is currently the UK’s longest direct rail route.
A spokesman for CrossCountry said: “These changes are aimed at making better use of all our available trains, putting more seats at the times and places where demand is highest.
“Currently CrossCountry operates only a very limited service in North-east Scotland, with the overwhelming majority of journeys undertaken on the local ScotRail trains.
“Our proposals would see the morning service to Penzance starting from Edinburgh and moving the arrival into Aberdeen from almost 9pm to a more attractive mid-afternoon time.”