Queensland Rail (QR) has apologised to customers stranded by the cancellation of long-distance rail through western Queensland due to flooding.
Spirit of the Outback, which travels between Longreach and Brisbane, and the Westlander, which travels between Charleville and Brisbane, have been cancelled without any alternative transport provided.
QR says it is unsure how long it will take for the services to resume.
QR spokesman Graeme Brown says flooding on the tracks in the south-east and has prevented trains from getting to their destination.
"So we have a lot of our crews out inspecting the lines and doing the repairs," he said.
"We currently haven't been able to inspect all the track between Gladstone and Brisbane.
"Certainly around the Bundaberg area at this stage we've cancelled those services and we do apologise for any inconvenience and asking our customers to keep checking the website or call our travel train number.
"We really don't know how long it will take to complete the repairs.
"There are some major bridges that may be involved, there's also [a] significant amount of track that we're looking at and finding there's really no issues at all.
"But at this stage it's really too early to predict what's going to happen when the floodwaters go down and we see what damage is left for us to repair."