Two men were seriously injured in a three-car chain-reaction crash on Route 8 Monday night in Harwinton, state police said.
Troopers were called to the crash near Exit 42 on the northbound lanes of Route 8 about 6:15 p.m.
State police said a Mitsubishi Endeavor lost control and crossed the left shoulder, hitting a guard rail before stopping again on the highway, facing south.
The vehicle was then hit head-on by a Subaru Legacy driving north; when the Subaru came to a stop, it was hit by a Pontiac G8.
The driver of the Mitsubishi, a Bridgeport man, was found lying in the road and unresponsive when troopers arrived. He was taken by ambulance to Waterbury Hospital and later transferred to Yale-New Haven Hospital.
The driver of the Subaru was flown to Hartford Hospital by LifeStar. The third driver was treated by first responders for minor injuries.