Nóra Quoirin, who was born with learning difficulties, was on a family holiday at a resort near Seremban, around an hour south of capital Kuala Lumpur.
The teenager, with a Northern Irish mother and French father, was understood to be travelling on an Irish passport.
The search for Nóra began on August 4th:
August 4th: Nóra was reported missing after her father discovered she was not in her bedroom at the Dusan Resort at around 8am on Sunday.
Family friend Catherine Cook said: “It’s out of character for Nóra to go wandering off.”
August 5th: A British charity said that Malaysian police were treating Nóra's disappearance as a potential abduction, but officers denied there was any foul play involved.
The Lucie Blackman Trust, a charity supporting missing people abroad, said police believed the teenager could have been taken.
However, speaking to press on Monday afternoon, Che Zakaria Bin Othman, deputy police chief of Negeri Sembilan, said: "So far there's no indication of foul play, however investigations are still ongoing."
August 6th: Nóra's family said they believed her to have been abducted.
A statement released on Tuesday said: “Nóra’s family believe she has been abducted.
“We are especially worried because Nóra has learning and developmental disabilities, and is not like other 15-year-olds.
“She looks younger, she is not capable of taking care of herself, and she won’t understand what is going on.
“She never goes anywhere by herself. We have no reason to believe she wandered off and is lost.”
August 7th: Police said they were analysing unidentified fingerprints found in the family's hotel suite.
The prints were at an open window in a downstairs hall, not in the bedroom upstairs where the girl was sleeping with her siblings, deputy police chief Che Zakaria Othman said.
August 9th: Nóra's family also revealed more about her condition, holoprosencephaly, as search crews played recorded messages from her mother, Meabh, through the forest in an attempt to reach the youngster.
They said in a statement: “Nóra is not like other teenagers. She is not independent and does not go anywhere alone.
“Nóra can read like a young child, but she cannot write more than a few words. She has a good memory but she cannot understand anything conceptual. She is unable to do maths and so things like money are impossible to manage.
“She cannot make or receive phone calls independently.”
August 10th: Nóra's family thanked the search teams involved since the teenager's disappearance.
Her mother and father, Meabh and Sebastien Quoirin, said: "To be with us here, it means the world to us. We are so grateful for everything that you are doing for us, everyone who is helping here and not from here.
“We are extremely impressed by the effort, your expertise, your dedication and we hope you find Nora.
“And thank you so much.”
August 13th: A body is found in the search for Nora shortly before 2pm local time. The Lucie Blackman Trust confirms the find, saying it "seems likely" it belongs to the school girl. On Tuesday night, the family is brought to a local hospital where they identify their daughter.