Hundreds of people have attended a funeral service for 12-year-old Tiahleigh Palmer, whose body was found on a northern Gold Coast riverbank earlier this month.

The memorial service notice for 12-year-old Tiahleigh Palmer.

Fishermen found Tiahleigh’s body on the banks of the Pimpama River on November 5, six days after she was last seen.

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Queensland Police suspect she may have been murdered.

Hundreds of family and friends gathered at Brisbane Anglican Maori Mission at Cornubia, south of Brisbane, for the funeral service.

Many of the mourners wore purple T-shirts emblazoned with a white heart and Tiahleigh’s name – purple was her favourite colour.

About 400 white roses placed on her coffin and purple balloons were released as a hearse drove the coffin away for a private cremation.

Members of the Maori community also performed the Haka.

During the memorial, Tiahleigh was described as a young girl who loved shopping, movies and dancing.

Her family said they had been overwhelmed by the love and support they had received since her death.

Investigators still don’t know how she died

The investigation into Tiahleigh’s death continues, but police have admitted they may never know how she died.

On Friday, Detective Superintendent Dave Hutchinson encouraged her fellow students at Marsden State High School to speak up if they knew something.

Detective Supt Hutchinson said police could not rule out the fact that Tiahleigh was picked up by a passing motorist.

Police are still looking for Tahleigh’s pink Mambo-style backpack and school uniform.

Detective Supt Hutchinson said police had been provided with some dashcam footage, but little that covered Muchow Road, outside Marsden State High School.

“Any footage of the area could be key to solving what happened to Tiahleigh, in particular any taken on Muchow Road near the school on the morning of October 30,” he said.

Earlier on Friday, motorists passing by the bridge close to where Tiahleigh was discovered were stopped and questioned by detectives hoping for a breakthrough.

Hundreds of balloons were released as a hearse drove Tiahleigh’s coffin to a private cremation.