Police said they were called to the Jamison Trash n Treasure market in Bowman Street, Macquarie, about 8am on Sunday after reports two men had been involved in an altercation.

One of the men received stab wounds and later went to hospital.

ACT Policing is investigating the circumstances surrounding the incident.

Anyone who may have seen the altercation was urged to contact Crime Stoppers on 1800 333 000, or via the Crime Stoppers ACT website. Information can be provided anonymously, quoting reference number 6301720.