Bunnings Warehouse staff were allegedly threatened after confronting a man who had attempted to steal from a store on Sunday.
Two men and a woman entered the shop on Dalton Drive at Maroochydore at about 8.30am, where it is alleged one man concealed an axe, and the other man concealed a radio and tried to leave without paying.
Staff confronted one of them as he was leaving and he handed over the radio, police allege.
The other man was challenged about the property by staff after he returned to a vehicle in the car park, when he allegedly threatened both male employees and produced the axe.
On Monday police released images of three people who may be able to help with investigations into the robbery.
The trio left the car park in a blue Holden Commodore sedan bearing stolen Queensland registration plates 542-XTU, authorities said.
Police said at about 9.35am on Sunday officers tried to intercept the vehicle at Alexandra Headlands.
The vehicle had been parked at the time before driving off at speed and leaving one of the males behind.
Authorities said a man and a woman fled in the car.
Anyone with information is urged to contact police or Crime Stoppers on 1800 333 000.