A 20-year-old man is in hospital with serious injuries following a single-vehicle collision in Halifax.

Police were called to the crash at the corner of Chebucto Road and Windsor Street shortly after 3:30 a.m. Friday.

When officers arrived, they found a man unresponsive in a Toyota Echo.

He was removed from the vehicle and taken to the Queen Elizabeth II Health Sciences Centre, where he remains in serious condition.

Police say the cause of the crash remains under investigation.