An 18-year-old whose disappearance after an illegal rave led to a month-long search died in dense woodland, a coroner said.

A conclusion of suicide was recorded at Caernarfon on Frantisek 'Frankie' Morris, of Llandegfan, Anglesey, who had been missing since May 2 and last seen at Pentir, near Bangor.

His body was found hanging from a tree, on June 3 at Caerhun on the outskirts of Bangor after police were called by a member of the public.

Police identified him from clothing and documents.

Home Office pathologist Dr Brian Rodgers said “Death would have been pretty well instant.”

Acting senior coroner for North West Wales Katie Sutherland said: "I am satisfied there was no third party involvement, on balance.”

But the coroner said a rape allegation had been made against him, it was discussed at the rave, and it may have troubled the teen.

Det Insp Lee Boycott said there hadn’t been an official rape complaint made and police had been asked not to speak to the teen.

“However, the victim’s friends were clearly aware of the allegation,” the officer said.

The North West police underwater search and marine unit had scoured Afon Cegin, a river near where he was last seen, during the search. During the investigation North Wales police had also arrested a man on suspicion of causing death by dangerous driving.

They also held a man and a woman on suspicion of perverting the course of justice.

were later eliminated from the inquiry.

Mum Alice said he was a “smart young man who enjoyed outdoor pursuits.”

The Samaritans' 24-hour emergency helpline is available to anyone at risk of self-harm by calling 116 123, or by texting SHOUT to 85258.