JACKSON, Miss. (AP) -- A 7-month-old Mississippi infant is dead and authorities continue to search for her sibling.
Lowndes County Chief Deputy Marc Miley says 2-year-old Maliah Harris disappeared with her parents after her 7-month-old sister, Alyssa, was found dead.
County Coroner Greg Merchant says there were no visible signs of injury. An autopsy is being conducted.
The Mississippi Highway Patrol issued an Amber Alert for the child and her parents -- identified 34-year-old Donald Boyd Harris and 31-year-old Allison Studdard.
Patrol spokesman Warren Strain says they were last seen in a black or brown 2002 Pontiac Aztec with Georgia license plate PGR7927.
Miley says the siblings' grandfather discovered Alyssa's body about 5:30 a.m. Wednesday. Miley says the grandfather called 911 and the parents left with the 2-year-old girl.