Daniel is missing from Kilsyth and was last seen over the weekend.
The 27-year-old was last seen at a home in Kilsyth on Sunday 20 February.
He may have a purple and silver hybrid bicycle with him.
Police are concerned for his welfare as he has a medical condition.
Anyone with information regarding Daniel’s whereabouts is urged to call Croydon Police Station on 9724 0100.
