The Surete du Quebec is asking for the public's help in locating David Harvey.
The 22 year old escaped from a hospital in Gatineau Saturday.
He was serving a sentence at a detention centre in Hull before being transferred to the hospital for medical care.
A hospital staff member was injured during the escape.
Harvey is from Montreal and authorities think he may be hitchhiking here.
He is 5 feet 11 inches tall, weighs 159 pounds with brown hair and eyes.
He was last seen wearing a black coat and pants.
The SQ is asking anyone with information to get in touch.