A third person has been charged in relation to the disappearance and alleged murder of Bundaberg teenager Pheobe Bishop.

A 30-year-old man was arrested in Bundaberg West about 7pm yesterday and charged with two counts of accessory after the fact to murder today.

Police alleged he used Bishop's phone to interfere with the investigation.

The man will face Bundaberg Magistrates Court later today.

Bishop's housemates, 34-year-old James Wood and his partner 33-year-old Tanika Bromley, have been charged with her murder and interfering with her corpse.

The pair will face court in August.

Bishop disappeared on May 15 after failing to board a flight from Bundaberg Airport to visit her boyfriend in Western Australia. 

Extensive searches and public appeals failed to yield any results for several weeks until police made a breakthrough on June 6.

Crews had found human remains near the Good Night Scrub National Park, about an hour away from Bishop's home in Gin Gin.

Those remains were later confirmed to belong to Bishop. 

Three crime scenes were declared throughout the course of the investigation — the site where the remains were found, Bishop's home she shared with her housemates in Gin Gin and her housemate's grey Hyundai IX35.

Community vigils were held for the 17-year-old in Gin Gin and Bundaberg in June.

Her mother, Kylie Johnson, said Bishop always "sung her own tune".

"She lived to the fullest," she told the crowd at the vigil in Gin Gin.

"She loved the people that she loved to every extent of the earth, and she was 200 per cent invested in the people that she loved.

"And that is what we need to hang on to and remind ourselves of it every day."

Bishop's sister Kaylea Bishop said 17 years was "never enough" life.

"But in the short 17 years that she was with us, God, she gave us a run for our bloody money," she said alongside her mum at the vigil.

"But that's just the way Pheobe was. But she was loyal to the core to everybody she loved, respected and valued in her life."

Police continue to appeal for any information in relation to Bishop or the movement of a grey Hyundai IX35 between May 15 to 18 in the greater Gin Gin area.

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