Lashiba Joy Berry, 2, went missing Tuesday when a woman taking care of her left with the girl.
Police are looking for Tamara Moore, a family friend, as a person of interest in Berry's disappearance.
In a Thursday afternoon news conference, the LAPD said Moore was caring for Berry and her 2-month-old brother in the family's RV while Berry's father ran an errand Wednesday. When the father, Larry Berry, returned about 30 minutes later, he found Moore and the girl were gone and the baby unattended.
The RV was parked in the area of 70th St. and Grand Ave. Moore is known to frequent the area of 103rd and Figueroa streets and 109th St. Western Blvd.
Police said the father is not involved in the disappearance.
Police said they don't believe Lashiba Berry is in danger, and it was expected Moore would eventually return with the girl.
Lashiba Berry is described as a 2-year-old black female, about 3 feet tall and weighing about 45 pounds, with black hair and brown eyes.
Tamara Moore is described as an 18-year-old black female with black hair and brown eyes. She stands 5 feet 8 inches tall and weighs about 140 pounds. Tamara has tattoos under each eye and the name "William" on the back of her neck.
If you have information related to the case, you're asked to call the LAPD at (877) LAPD-247.