Hanalei Visiko-Knox, 16, was last seen walking out of Pittsford Mendon High School at 8 a.m. on Thursday.
Visiko-Knox is 5'2" and 100 lbs.
She was wearing a white t-shirt, black shorts, white sneakers, a black backpack, and glasses.
She is seen on surveillance leaving the school.
If you know anything, please call 911.