Police searching for family of young girl found wandering alone in the Bronx over the weekend

Police say they are searching for the family of a girl who was found alone in the Bronx over the weekend. 
They say she was found Sunday morning on the corner of 156th Street and Prospect Avenue. 
The young girl says her name is Sidaya, according to police. Police believe the girl is 4 years old. 
Police say they don’t know where she lives or who should be caring for her or what she was doing out alone. 
Right now, she’s in the care of the Administration for Children’s Services, according to police. 
According to police, surveillance video from a bodega a few blocks away shows the girl 10 minutes prior to being found, following behind a woman at around 11:45 p.m. Saturday night. 
The woman in the video is in her mid-20s and is about 5 feet and 2 inches tall, according to police. 
They say she hasn’t been seen since. 
Police are asking anyone with information to come forward.