Officers and rescue crews responded Saturday just before 12:15 p.m. to the 1200 block of Arlington Street. EMS took the child to a local hospital.
Jayla J. Branch, 25, was arrested and charged with felony child abuse-serious bodily injury after investigators determined she left her child "strapped in a car seat unattended inside a vehicle that was not running during extremely high temperatures," according to court documents.
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As of Sunday morning, the child remained in critical condition. The age of the child was not released.
Police said the incident remains under active investigation.
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Branch is in the Guilford County Jail on a $250,000 bond.
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NOTE: Video is from a previous report.
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