Police looking for the past three days for a missing East Windsor teen recovered his pick up truck at a Mercer County train station.

Riley Branstrom and his pickup truck (Facebook via Monmouth County Police, Fire & EMS)

18-year-old Riley Branstrom's truck was found at the Princeton Junction train station on Thursday night according to the Mercury 1089 Facebook page. It is the page of his high school robotics team that has been spreading the word about his disappearance.

Branstorm graduated from Hightstown HIgh School in 2012.

His last known location was near the Monmouth Battlefield State park in Freehold on Monday. Police have not been able to track his cell phone since then.

He is driving a green and silver 1994 Chevrolet pickup truck with New Jersey registration T31ADV.

He is described as a white male, 18 years old, 5 feet 10 inches tall, 160 pounds, with brown hair and brown eyes.