(Photo by JEFFREY HASTINGS) A police cruiser redirects traffic on Main Dunstable Road Sunday morning while police conduct their on-scene investigation into the single-car crash that claimed the life of the driver.

NASHUA — Members of the police department’s Collision Reconstruction Unit and its Criminal Investigations Division continue to investigate the rollover crash on Main Dunstable Road that claimed the life of a 22-year-old man whose identity has yet to be released.

Police said the man’s name is being withheld pending notification of family members. They said that further information will be released as it becomes available, citing the ongoing investigation.

Police, firefighters and AMR ambulance personnel were called just after 2 a.m. Sunday to the area of 427 Main Dunstable Road for a report of a single-vehicle crash with injury.

They determined that the driver was the only occupant of the car, which they found on its roof in the front yard of the home, which sits back about 100 feet from the road.

Firefighters went to work with hydraulic rescue tools to extricate the man from the wreckage, and were able to remove him after about 30 minutes.

(Photo by JEFFREY HASTINGS) The vehicle in which a man believed to be in his 20s was killed early Sunday morning sits on its roof on the leaf-covered property of 427 Main Dunstable Road.

Medical personnel were unable to revive the man, however, and he was pronounced deceased at the scene.

Police said that part of the ongoing investigation is whether alcohol or drugs were a factor in the crash. They didn’t say whether speed may have been involved.

The crash occurred between Rene Drive and Whitford Road, closer to Rene Drive, a cul-de-sac of about a dozen residences.

Police closed Main Dunstable Road shortly after arrival, and the section between Rene Drive and Whitford Road remained closed well into Sunday morning.

The vehicle appears to have struck several large rocks after it went off the road, which caused it to roll over.

(Photo by JEFFREY HASTINGS) The wreckage of the vehicle from which a man believed to be in his 20s was extricated early Sunday morning on Main Dunstable Road. The man died of injuries sustained in the crash.

Police ask anyone who may have witnessed the crash, or has more information, to contact the department at 594-3500 or call its Crime Line at 589-1665.

Telegraph contributor Jeffrey Hastings provided material for this story.

Dean Shalhoup may be reached at 594-1256 or dshalhoup@nashuatelegraph.com.

(Photo by JEFFREY HASTINGS) The vehicle in which a man believed to be in his 20s was killed early Sunday morning sits on its roof on the leaf-covered property of 427 Main Dunstable Road, where it came to rest after stiking trees and rocks.