Route 183 was closed for several hours between Hayden Hill Road and Cedar Lane in Torrington following a fatal crash, according to police.
Police said the one-car crash was reported around 3:30 a.m. and that one person has died.
The victim, 22-year-old Frederick Lagassie, veered off the road. His car hit a fire hydrant and several trees before he was ejected from his vehicle.
The cause of the crash is unclear.
The road remained closed for hours Sunday morning and reopened around 9:30 a.m., according to police.
The accident is under investigation by the Torrington Police Department.
Anyone with information regarding the crash is asked to call Detective Kyle Johnson or Detective Crean at 860-489-2000.