The housemate of a missing Bundaberg teenager has been released without charge after being questioned by police.

Queensland Police yesterday took 34-year-old James Wood into custody over the disappearance of 17-year-old Pheobe Bishop three weeks ago.

Bishop disappeared three weeks ago.

She lived with Wood and his partner Tanika Bromley in a share home in Gin Gin.

They were the last people to see her after they dropped her off at Bundaberg Airport to fly to Western Australia via Brisbane about 8.30am on May 15.

Pheobe was meant to visit her boyfriend in Western Australia but, according to police, never checked in for her flight or entered the terminal.

Police, with the help of the Homicide Investigation Unit, are continuing to investigate Pheobe’s suspicious disappearance.

Last week, police suspended their search of the Good Night Scrub National Park, about an hour away from where Pheobe was last seen, which had been a focus in the investigation.

They said they found evidence linked to the teen’s disappearance but have not said what they found.

Detectives also said they believe evidence had been moved from the bushland prior to their search. 

Two crime scenes have been declared — the home in Gin Gin and her housemate’s grey Hyundai ix35 with registration 414EW3.

A search of the car led police to allegedly find a shortened firearm, ammunition, and two replica handguns.

More ammunition was allegedly found at a home in Gin Gin. 

Bromley and Wood have since been charged with unrelated weapons offences. 

They remain before the courts on the weapons charges.