We're asking for the community's help to find the missing teenager. She was last seen on camera at 4:50 a.m. near N. Tantau Avenue and Stevens Creek Boulevard in City of Cupertino. She was wearing black pants, a black sweatshirt with white stars, and blue sneakers with rainbow beads on the laces. The Santa Clara County Search and Rescue Team searched the area using canines, but she has not yet been located. She is believed to be at risk.

Update 9/29: Mia “Alex” Rivas was seen on Monday night just before 10 p.m. near De Anza College in City of Cupertino. Deputies searched the area, but have not yet made contact with her. Alex remains at risk.