UPDATE: Fatal Accident on Route 7 North Sunday

Update, 1:06 p.m. Sunday, April 7:

A 20-year-old New Milford woman was killed following Sunday morning's car crash, state police confirmed.

Marina Callisen was pronounced dead at the scene of the accident, according to the Hartford Courant. 

A male passenger — Erin Hansen, 21, of Danbury — was treated for his "minor injuries" at Danbury Hospital, according to the report.

Original article:

Brookfield and Connecticut State Police and local fire and EMS responded to a single-car accident on Route 7 early Sunday morning that left one passenger dead and another in critical condition.

Just before 1 a.m. Sunday, emergency responders were called to the scene of a vehicle over the guardrail and down the embankment about a quarter-mile past exit 11 on Route 7 North.

One of the vehicle's passengers was pronounced dead at the scene and the other was transported to Danbury Hospital.

Connecticut State Police closed the highway early Sunday to investigate the crash.

Danbury Ambulance Paramedic also responded to the scene, as did Danbury Fire Department's "Heavy Rescue" rig, however the latter was called off prior to its arrival.

Brookfield Patch will update this article as more information becomes available.