The family of Nóra Quoirin will challenge an inquest ruling that she died by misadventure after vanishing in the Malaysian jungle while on holiday, their lawyer has said.

The body of the 15-year-old was discovered after a massive hunt through the rainforest following her disappearance from a resort outside Kuala Lumpur in 2019.

Earlier this month, a coroner handed down a ruling of misadventure, indicating her death was accidental rather than a crime, and said no one else was involved.

As reported by RTÉ News last week, her London-based parents, who believe the schoolgirl was abducted, plan to file a request for the ruling to be revised in the high court.

Lawyer S Sakthyvell told the AFP news agency today that the challenge would be submitted "as soon as possible" in the court in the city of Seremban, but could not confirm when it would begin.

If that fails, the family can lodge a final challenge at the court of appeal.

Nóra's mother Meabh speaks to those searching for the teenager in 2019 

The teenager's mother, Meabh Quoirin, said the inquest brought up a number of questions for them, after the verdict, and she believed someone had placed her daughter's body in the spot where it was found.

The teenager, who had learning difficulties, disappeared a day after her family checked in to the Dusun Resort, triggering a 10-day hunt involving hundreds of rescuers, helicopters and sniffer dogs.

Her body was found not far from the resort. Police said there was no sign of foul play, while an autopsy concluded she likely died of starvation and internal bleeding.

The coroner suggested she likely wandered out of the family's holiday chalet in the night of her own accord after a long journey from Britain to Malaysia left her disoriented.

Her parents have dismissed this theory.