A teen is fighting for life and another has been charged with attempted murder after an ongoing disagreement escalated into a near-fatal stabbing on the Sunshine Coast.

The two 17-year-olds got into a fight in the pedestrian underpass at Nambour train station about 5.20pm on Friday.

One of the teens was flown to Brisbane after he was stabbed in the chest, while the other was arrested at a nearby residence later that night.

Officers allegedly found a knife at the property where he was located.
Detective Senior Sergeant Phil Hurst said police were still trying to work out what caused the stabbing but the pair were known to each other.

“There was some disagreement between them leading up to this altercation,” he said on Saturday.

Det Snr Sgt Hurst said there were several people in the subway about the time of the fight who were helping police with the investigation.

“The incident has been captured on CCTV and we’re in the processes of getting that from the Department of Transport,” he said.

“We have viewed that footage and it assisted us in identifying the people involved.”

Investigators established a crime scene at the underpass as they used blood spatter and other evidence to discern what happened.

The stabbed teen remains in a critical condition at Prince Charles Hospital.

-AAP