Police say group was throwing rocks at cars before stabbing in Canberra's north

The ACT chief police officer says a 23-year-old man was stabbed in a "concerning" incident in Belconnen early this morning.

Police allege four people were throwing objects at passing vehicles near the intersection of Coulter Drive and Ginninderra Drive.

ACT Policing Deputy Commissioner Scott Lee told ABC Radio Canberra that one person got out of his vehicle at about 12:30am after something was thrown at his car and was stabbed multiple times.

"And then that individual, that young person, after that incident has taken himself home and then his parents have got him to hospital."

He said that while the man's condition had been stabilised, "our thoughts and prayers do go to him and his family".

'Multiple calls made to police'

The four people allegedly involved in the incident are still at large, Deputy Commissioner Lee said.

"Those people remain outstanding, so what I would ask is for anyone that has information in relation to these people we would ask you to come forward and talk to police as a matter of priority this morning," he said.

"Either do that directly to the ACT Police and Communications Centre or via Crime Stoppers.

Deputy Commissioner Lee said there were "multiple calls" made to police this morning about objects being thrown at a number of vehicles.

A crime scene has been established.