POLICE have asked for public assistance to help locate missing Portland teen William Podboy.
The 14-year-old has not been since January 31 on Wade Street, Portland.
Police believe William may be with his 18-year-old sister in the Portland/Warnambool area.
Investigators are concered due to his age and the fact that he has not contacted his mother for 10 days.
William is described as Caucasian, 158 cm tall, with a slim build and short brown hair.
Police have released an image and urge anyone with information about his whereabouts to call Crime Stoppers on 1800 333 000.