A 21-year-oldman found unconscious Saturday morningnear a Dartmouth school has died of his injuries.

Police say David Joseph Hannan, 21, died in hospital Monday afternoon.

Hannan was covered in blood when a passerby found him behind Harbourview School, near the pedway crossing Victoria Road, at 6:20 a.m.

He was taken to hospital with serious head injuries.

Police say an autopsy will be conducted. Meanwhile,theMajor Crime Unitcontinues to investigate.

Anyone with information is asked to contact Halifax police or Crime Stoppers.