Clayton County authorities issued a Mattie’s Call early Wednesday for a teen who jumped from an ambulance while she was en route for a mental evaluation.

Kyonna Walker is 17 years old, 5-foot-7 and about 156 pounds, Clayton County police Sgt. Ashanti Marbury said in an emailed statement. Walker has brown hair and a long brown weave.

Walker has been diagnosed with bipolar disorder, police said. She was being taken to Southern Regional Medical Center about 1:30 a.m. Wednesday when she jumped from the ambulance near the intersection of Ga. 85 and Ga. 138, Marbury said.

Anyone with knowledge of Walker’s whereabouts can call 911 or contact Detective K. Green at 770-477-3659. Anyone can leave information anonymously at 770-477-3513 or message ‘CLAYTONPD’ to 274627.

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