Police say a man riding a motorcycle was killed following a crash on the Palisades Parkway in Alpine.

The crash happened Saturday around 2:30 p.m. at the Exit 4 ramp on the southbound side of the parkway.

According to officers, when they arrived at the scene, civilians were already doing CPR on the victim, a 31-year-old from Brooklyn.

Police say the victim was driving a black 2009 Buell motorcycle.

He was transported to a hospital, where he was pronounced dead.