Bipolar teen Nianna Langford missing, last seen Friday on Detroit's westside

Nianna Langford was last seen by her father in the 20000 block of Cherokee on Friday around 3:40 p.m. 

Nianna left the location after her father left to go to the store and did not return home. She is a black female 17 years old; she was last seen wearing a gray shirt, gray leggings and gray UGG boots. 

Nianna is in good physical condition but suffers from Bipolar disorder. 

If anyone has seen Nianna Langford or knows of her whereabouts, they are asked to please contact the Detroit Police Department's Eight Precinct Investigative Unit at 313-596-5840.