The RCMP in Inuvik say they are concerned about the well-being of Donald Kuptana who has not been seen since Thursday afternoon.
They said in a release there has been an extensive search for the 17-year-old Inuvik resident, but he has not been found.
He was last seen about 3:30 p.m. Thursday afternoon.
Kuptana is five-feet, 11-inches tall and slender, according to police.
The Inuvik RCMP can be contacted at 867-777-1111.