August 6: Nora's family said they believed her to have been abducted.
"The police have been working extremely hard to bring Nora home".
Police believe the teen climbed out through an open window in the living room of the resort cottage, and have listed her as a missing person but do not rule out a possible criminal element.
Praising the efforts of police carrying out the search, they said they had made a decision to offer the reward "to help their investigation".
"We are appealing to anyone who has information about Nora to help us find her".
The 15-year-old was born with holoprosencephaly, a disorder which affects brain development, meaning that her communication is limited and she struggles with co-ordination.More news: Google brings fingerprint authentication to Google websites on Android
"You have given up your time especially at a special festival time", said Ms Quoirin, referring to Hari Raya Haji, the Islamic "festival of sacrifice" celebrations. "She is so precious to us and our hearts are breaking, We are appealing to anyone who has information about Nora to help us to find her", she said. The search effort has slowly been expanding as the days Nora has been missing slowly turn into weeks.
The girl's mother is from Ireland and her father is French, but the family has lived in London for 20 years.
"If you have any information at all, please call the police hotline here on 01112285058 or email firstname.lastname@example.org from outside Malaysia".
Police from France, Ireland and the United Kingdom are providing Malaysian police with support in their quest to locate Nora.
But a member of the search team said: "As of yet the dogs have not found anything and that is a good sign".
British schoolgirl Nora Anne Quoirin has gone missing from the The Dusun Resort near a forest reserve and in the foothills of a mountain range, in Negri Sembilan.More news: Myanmar landslide toll climbs to 59
Nora has not been seen since disappearing from her holiday villa near the town of Seremban.
Khalid Mohamad said he believed the youngster was lured away from the eco-resort in Malaysia by a "genie" - because of her special needs and had chosen her as its stepchild.
"Nora can read like a young child, but she cannot write more than a few words".
Malaysian police are now analysing unidentified fingerprints on the window of Nora's room, and on Friday 9 August, footprints were found in the jungle close to where the teenager vanished.
In a video broadcast on local media, she added: "We want to say thank you to each and every one of you".More news: Fortnite World Champ "Bugha" swatted during Sunday livestream
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