FORT BEND COUNTY, Texas - A Fort Bend ISD mother is speaking out after her daughter was left unaccounted for on a school bus for nearly two hours - raising serious concerns about the district's transportation safety procedures.

Michelle Lemon's daughter, Bryne, is a 9th grader at Hightower High School.

Lemon says Bryne is picked up every morning between 6:29 and 6:35 a.m. But on Thursday, Bryne got on the school bus and did not return home at her scheduled drop-off time.