Police have charged a 34-year-old man following an alleged robbery in Petrie, north of Brisbane, early on Thursday morning.

Emergency services were called to a park on Gympie Road at about 3:41am on 24 September 2026 after reports that a man had been assaulted.

Police allege a 57-year-old man was approached by another man he did not know and was punched during the incident. A number of personal items were allegedly taken from him.

Investigators also allege that the accused man had a knife in his possession during the incident. Police said the knife was not presented or used during the alleged assault.

The 57-year-old man suffered injuries that were not considered life-threatening. He was treated before being transported to hospital in a stable condition.

Following the incident, officers from the Pine Rivers Criminal Investigation Branch began inquiries to identify the person allegedly responsible.

Police subsequently charged a 34-year-old man from Kallangur in connection with the incident.

He has been charged with robbery with violence, possessing a knife in a public place, possessing dangerous drugs and possessing utensils that police allege had been used in connection with drug activity.

The accused is due to appear before Pine River Magistrates Court on 25 September 2026.

The alleged incident occurred during the early hours of the morning in a public area along Gympie Road. Police investigations will consider the circumstances leading up to the alleged assault, the items reportedly taken and the evidence linking the accused to the incident.

The investigation may also involve witness accounts and other available evidence from the area.

The victim's injuries were described as non-life-threatening, and he remained in a stable condition after being taken to hospital.

The charges now move the matter into the court process, where the allegations will be considered. A person charged with an offence is presumed innocent unless proven guilty in court.

Police continue to investigate the circumstances surrounding the alleged robbery and have encouraged anyone with relevant information to assist investigators through appropriate reporting channels.

The incident is being treated as a robbery investigation by Queensland police, with the accused scheduled to face court following the charges.