Two people were found dead in a burning car early Saturday on the Merritt Parkway on the Fairfield-Westport border.

Few details about the incident, reported Saturday between northbound Exits 42 and 44 of the highway, were immediately available.

Firefighters in both towns were dispatched to the scene for what initially was reported to be a grass fire just over the Fairfield border.

A Chevy Cobalt ran off the road just after 6:30 a.m., State Police spokesman Lt. J. Paul Vance said, adding that the passenger and driver are both Connecticut residents, and release of their names is being withheld until next of kin are notified.

Upon arrival, they found a car on fire and two people who were dead inside, according to Fairfield Assistant Fire Chief Scott Bisson.

There were no details available on the identity of the dead or the circumstances of the fire.

Firefighters and State Police troopers were on the scene for nearly four hours as the incident was investigated, but the site was cleared and all travel lanes reopened at 10:20 a.m.