As we reported live as breaking news:

Fairfield Fire Department responded to I-95 Northbound approximately 1 mile before Exit 19 to the report of a motor vehicle accident. Fairfield Fire Department work in conjunction with Westport Fire Department at that single vehicle accident. The vehicle left the roadway and went over the guardrail continuing down a steep embankment through thick overgrowth and trees for approximately 100 feet before coming to rest on its roof. The driver of the vehicle was sitting on the guardrail and immediately treated by Westport EMS and AMR Ambulance and transported to the hospital.
Fairfield and Westport Fire departments stabilized the vehicle and assessed the 3 victims remaining in the vehicle. 2 victims were pronounced dead on the scene by fire personnel and confirmed by AMR paramedics. Both Fire Departments used extrication tools to access both sides of the vehicle gaining access to the one patient. Contact was established and treatment began.
Once the doors were removed the patient was removed onto a backboard and into a stokes basket. A Mechanical advantage rope rigging system was put into place that was used to haul the patient up the embankment. The patient was loaded into the ambulance and transported by AMR to the hospital. The two remaining bodies were then extricated and removed up the embankment to the roadway and secured to await the arrival of the State Medical Examiner.
The incident was then turned over to Connecticut State Police for investigation.