SIDNEY – A Plymouth man died early Wednesday when his car collided with a horse in foggy conditions on Interstate 95, state police said.

James MacKenzie, 46, was killed instantly when his southbound car struck one of two horses that apparently had wandered off a nearby pasture, said Maine State Police Trooper Jeffrey Beach.

The collision’s impact sent the large horse into the car’s windshield and roof, crushing the driver, authorities said.

MacKenzie, an employee of Cianbro Corp., was traveling to a work site in Portland, police said.

The horse also died from the collision.