North Brisbane detectives are investigating an armed robbery and assault at a unit in Auchenflower.
At 1.30am on December 22, two men and a woman gained entry to the McIlwraith Street home.
A 25-year-old woman and 32-year-old man were home at the time.
One of the men punched the 32-year-old resident in the right cheekbone.
The man slammed shut the front door locking it, preventing the victims from leaving the unit for a period of three hours.
The man produced a large knife and threatened the two occupants, demanding property. A second male has then kicked the 32-year-old male resident in the leg and punched him in the cheek.
One of the men and the woman located property from the unit whilst the third male held the occupants at knife point.
The three offenders left the unit a short time later stealing cufflinks, a torch, shoulder bag and personal accessories.
A 27-year-old Bellmere man has been arrested and