A Coram man has been arrested for allegedly robbing a woman at knifepoint and stealing her car.

Suffolk police say the victim was sitting in her car in her driveway on Teller Avenue a little after midnight on Saturday.

Police say 22-year-old Diorgenis Cruz-Torres smashed the driver's side window with a hammer and threatened the woman with a knife.

Police say Torres then drove off in the stolen car.

Police were able to track the vehicle to Manhattan, through the victim's cellphone.

Torres now faces felony robbery charges.