Suffolk County Police Major Case Unit detectives are investigating a hit-and-run crash that seriously injured a pedestrian in Central Islip last night.

An adult male pedestrian was crossing Carleton Avenue in the crosswalk at South Research Place when he was struck by a motor vehicle travelling southbound on Carleton Avenue at approximately 9 p.m. The vehicle fled the scene, continuing southbound on Carleton Avenue.

The victim, whose identity is being withheld pending notification of next of kin, was transported via Central Islip-Hauppague Volunteer Ambulance Corps to Southside Hospital in Bay Shore in serious condition.

Detectives are asking anyone with information on this crash to call the Major Case Unit at 631-852-6553 or anonymously to Crime Stoppers at 1-800-220-TIPS.