A Fairfield police sergeant was injured Sunday night in a two-car crash on Interstate 95.

Sgt. Edward Weihe was en route to a domestic violence call on I-95 southbound near the Fairfield rest area when he lost control of the police cruiser he was driving about 8:45 p.m. and struck the highway's Jersey barrier before coming to a rest, State Police said.

As Weihe lost control, a 38-year-old Meriden woman driving a black Hyundai Elentra also lost control and spun into the barrier.

Both Weihe and the other driver, identified by police as Florence Opoku, complained of neck and back injuries, and were transported to St. Vincent's Medical Center in Bridgeport, state police said.

Sgt. Suzanne Lussier, a Fairfield police spokeswoman, said Weihe was treated and released.

Weihe had activated his cruiser's lights and sirens while responding to a call about a 12-year-old boy threatening to kill himself and injure his sister and mother following an argument over computer use. Lussier said Weihe was traveling via I-95 to get to the call at the Ross Hill Road home quickly.

When other officers arrived at the home, they found a kitchen knife outside the front door. The 12-year-old was charged with breach of peace and was scheduled to appear in juvenile court Tuesday.

Assistant Fire Chief Chris Tracy said Companies 1 and 2 responded to the accident scene, along with an American Medical Response ambulance.

The highway incident is being investigated by State Police.