A motorcyclist was killed when he crashed into the back of a van in The Bronx Sunday, authorities said.

The 24-year-old man was riding a 2005 Yamaha on the Major Deegan Expressway in Kingsbridge at around 10:30 a.m. when he hit the rear bumper of a 2006 Mazda van, cops said.

He was rushed to St. Barnabas Hospital, where he was pronounced dead, officials said.