Six children were killed when a school bus crashed in Chattanooga, Tenn., on Nov. 21, 2016.
A school bus is carried away Nov. 22, 2016, in Chattanooga, Tenn, from the site where it crashed, killing at least five students.
(Mark Humphrey / AP)
People hug as cars line up to pick up students at Woodmore Elementary School on Nov. 22, 2016, in Chattanooga, Tenn.
(Mark Humphrey / AP)
A tarp covers a section of the wreckage the day after a school bus accident Nov. 22, 2016, in Chattanooga, Tenn.
(Doug Strickland / AP)Advertisement
A woman escorts three children away from the scene of a fatal school bus wreck in Chattanooga, Tenn., on Nov. 21, 2016.
(Angela Lewis Foster / Chattanooga Times Free Press via AP)
Chattanooga police Chief Fred Fletcher, center, talks with the media at the scene of a fatal school bus wreck in Chattanooga, Tenn., on Nov. 21, 2016.
(Angela Lewis Foster / Chattanooga Times Free Press via AP)
Chattanooga Fire Department personnel work the scene of a fatal elementary school bus crash in Chattanooga, Tenn., on Nov. 21, 2016.
(Bruce Garner / Chattanooga Fire Department via AP)
Emergency personnel work at the scene of a fatal school bus wreck in Chattanooga, Tenn., on Nov. 21, 2016.
(Angela Lewis Foster / Chattanooga Times Free Press via AP)