Police are searching for 17-year-old Tylah, who has been missing since Tuesday 19 April.
He is around 165cm tall, with a slim build and short brown hair. He was last seen on Virginia Way in Ferntree Gully.
Police said he is known to frequent Ashburton, Forest Hill, Glen Waverley and Ferntree Gully.
The police and family are concerned due to his age and health conditions. Anyone with information regarding his whereabouts is urged to contact Knox Police station on 03 9881 7000.
