State police troopers rescued an unconscious driver from a burning car on I-91 early Friday morning, police said. About 3:08 a.m., troopers from Troop H in Hartford responded to a crash in which a vehicle rolled over on I-91 north at exit 29A. The vehicle, a Nissan Altima, was also reported to be on fire, state police said. A trooper working at a nearby highway construction job responded and found the car on its roof and on fire, with the driver trapped inside, state police said. Working with another trooper, he was able to extinguish the fire, and the unconscious driver was eventually removed from the car and taken to Hartford Hospital. The driver did not suffer any serious injuries, state police said. None of the troopers were injured, state police said.