Dallas police said a child mistakenly left in a car for as many as four hours died Thursday afternoon.
Police and paramedics were called to the home in the 1900 block of Sedona just after 1:30 p.m.
Family members told investigators they found 7-month-old Brianna Jones unconscious in the car and called 911. Paramedics worked to revive the child before transporting her to Methodist Central Hospital, where she later died.
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According to police, a family friend planned to drop the child off at day care, but mistakenly left the child in the car.
She returned home about 9 o'clock this morning, and when she came back out, the officers actually drove up about the same time, about 1:30 in the afternoon, so about four and a half hours or so, so it's really a tragedy," Lt. Andy Harvey said.
Child abuse detectives went to the scene to talk with family members and the friend to determine if there was evidence of a crime.