ScotRail has introduced a temporary timetable today, affecting passengers in the north-east and across the rest of Scotland.
It's due to driver shortages, with a "significant number of drivers" choosing not to make themselves available for overtime or rest day working meaning the temporary timetable has been implemented.
The rail firm says it was relying on drivers working overtime or on their rest days to run a normal timetable, as the coronavirus pandemic meant the training new drivers was "significantly delayed".
It says that without the impact of the pandemic and how it has affected training, an extra 130 drivers would have been trained today.
There is a pay dispute between ASLEF, the train drivers’ union, and ScotRail.
What affect will this situation have on people's travel plans for the foreseeable future?
Anas Hassan has been chatting with Peter John Meiklem, Team Lead for Transport and the Environment at The Courier, which covers southern Aberdeenshire, about what it all means: