Provincial Police Commander Chief Inspector David Yapu (pictured) said the deceased’s body was found hanging from a tree after she went missing from June 21 to June 23.
Her body was discovered at Bush camp, Lombrum Naval base, on June 23.
The deceased has been identified as Doris Moipe, who transferred to Manus to continue her education after completing Grade 10 at the Good Shepherd High School in Madang Province.
She was to continue her education but ended up marrying a Manus man instead.
PPC Yapu said police believe her suicide and death was a result of ongoing domestic problems with her husband.
A post mortem could not be conducted on the deceased due to the state of the body.
PPC Yapu said the body had decomposed and has since been buried.
Meanwhile, police reported three motor vehicle accidents on Friday night in Lorengau.
Two of those accidents were reported near the Papindo Supermarket while the other was at Salasia hill at ward 1.
PPC Yapu said the accidents at Papindo were alcohol related and a driver has been identified and will soon be charged by police for drunk driving and driving without due care and attention.
The accident at Salasia hill was one where the vehicle ran off the road. The driver is an expatriate and escaped with no injuries.
The driver has been identified and will also be arrested soon for negligent driving.