2-car crash snarls traffic on Southern State Parkway for hours

A crash that involved two cars backed up traffic on the Southern State Parkway for hours on Christmas Eve.
State police said the accident happened just before 7 p.m.
It appeared that the two vehicles collided just before the overpass between exits 38 and 39 in West Babylon.
State police said one lane was closed to clear the scene.
It was not immediately clear what caused the crash and if anyone was injured.