WALLINGFORD, Conn. (WTNH) — State police are seeking witnesses to a two-car crash that left a man seriously injured Thursday morning and shut down Route 15 in Wallingford.

According to police, a Toyota Short WB Deluxe was traveling in the right lane of Route 15 South when it was rear-ended by a Toyota Rav 4.

State police and EMS responded to the area of Exit 66 around 7:55 a.m. All southbound lanes were closed between Exits 66 and 65, and crews diverted traffic off Exit 66. All lanes have since reopened.

As of a result of the collision, the Toyota Short WB Deluxe spun out of control and entered the shoulder of the road where it rolled over and collided with a wire rope guardrail. The Toyota WB Deluxe then rolled down an embankment and came to an uncontrolled stop when it slammed into a tree, according to police.

The driver of the Toyota Rav 4 was not injured and pulled safely into the right shoulder.

Police said the driver of the Toyota WB Deluxe sustained suspected serious injuries in the crash and was taken to Yale New Haven Hospital for medical care. He was identified as a 34-year-old man from Shelton.

The collision remains under investigation by state police. Anyone who may have witnessed the crash or has information on the investigation is asked to contact Trooper McCue #792 at CT State Police Troop I at 203-393-4200 or Daniel.McCue@ct.gov.