Waterloo Regional Police

Waterloo Regional Police arrested four people Friday after searching a marijuana dispensary in downtown Kitchener. (Colin Butler/CBC News)

A suspected drunk driver is fighting for his life in a Hamilton hospital after he nearly died in a single-vehicle crash in a west-end Kitchener neighbourhood late Tuesday night.

Investigators say the man lost control of his car at around 11:00 p.m. on Tuesday night while travelling along Forestwood Drive in Kitchener's Fischer Hallman and Highway 7 area. 

Police say the car left the road and struck a tree, destroying the car and leaving its 23-year-old driver, who had to be airlifted to hospital in Hamilton, with life-threatening injuries.

Forestwood Drive was closed for several hours Tuesday night as investigators pored over the scene of the accident, looking for clues. 

Police believe that speed and alcohol were factors in the crash. 

Investigators say the 23-year-old man was driving a grey Ford car and ask anyone who may have witnessed the crash to contact the Waterloo Regional Police Service or Crimestoppers.