Tennessee

The Latest: Drugs, alcohol not involved in fatal bus crash

  • Children get a goodbye hug as students are picked up from Woodmore Elementary School on Tuesday, Nov. 22, 2016, in Chattanooga, Tenn. The school bus driven by Johnthony Walker, 24, crashed while transporting children home from the school Monday, killing at least five students. Walker was arrested Monday and charged with five counts of vehicular homicide including reckless driving and reckless endangerment, police said. (AP Photo/Mark Humphrey)

    Children get a goodbye hug as students are picked up from Woodmore Elementary School on Tuesday, Nov. 22, 2016, in Chattanooga, Tenn. The school bus driven by Johnthony Walker, 24, crashed while transporting children home from the school Monday, killing at least five students. Walker was arrested Monday and charged with five counts of vehicular homicide including reckless driving and reckless endangerment, police said. (AP Photo/Mark Humphrey)  (The Associated Press)

  • Flowers, signs and stuffed animals make up a makeshift memorial outside Woodmore Elementary School on Tuesday, Nov. 22, 2016, in Chattanooga, Tenn. The school bus driven by Johnthony Walker, 24, crashed while transporting children home from the school Monday, killing at least five students. Walker was arrested Monday and charged with five counts of vehicular homicide including reckless driving and reckless endangerment, police said. (AP Photo/Mark Humphrey)

    Flowers, signs and stuffed animals make up a makeshift memorial outside Woodmore Elementary School on Tuesday, Nov. 22, 2016, in Chattanooga, Tenn. The school bus driven by Johnthony Walker, 24, crashed while transporting children home from the school Monday, killing at least five students. Walker was arrested Monday and charged with five counts of vehicular homicide including reckless driving and reckless endangerment, police said. (AP Photo/Mark Humphrey)  (The Associated Press)

  • In this undated photo released by the Chattanooga Police Department, Johnthony Walker, 24, poses for a photo. Walker, the driver of a school bus that was filled with elementary students when it crashed, Monday, Nov. 21, 2016, in Chattanooga, killing at least five children, has been arrested and faces charges including vehicular homicide. (Chattanooga Police Department via AP)

    In this undated photo released by the Chattanooga Police Department, Johnthony Walker, 24, poses for a photo. Walker, the driver of a school bus that was filled with elementary students when it crashed, Monday, Nov. 21, 2016, in Chattanooga, killing at least five children, has been arrested and faces charges including vehicular homicide. (Chattanooga Police Department via AP)  (The Associated Press)

The Latest on the Chattanooga school bus crash that killed five children (all times local):

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3:30 p.m.

Police say toxicology reports on the driver of the bus that crashed in Chattanooga, killing five children, show no trace of drugs or alcohol.

Chattanooga Police Sgt. Austin Garrett announced Wednesday that a blood test was conducted on 24-year-old Johnthony Walker, who is charged with five counts of vehicular homicide.

Police say he was driving well over the posted 30-mph speed limit when he lost control of the bus.

Garrett said police are continuing to interview witnesses and review video footage of the crash. Six children remain hospitalized.

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3:40 a.m.

A pediatric emergency room doctor at the hospital where students were taken after a Chattanooga school bus crash killed five children says matching the injured with parents was a long process.

Dr. Darvey Koller of Children's Hospital at Erlanger said Tuesday that the children were scared and dazed and so young that many couldn't spell their names or remember their parents' names. Koller says several of the children said "Momma" when asked who their parents were.

Twenty-three children were taken to hospitals Monday afternoon. Twelve were still there Tuesday evening, including six still in critical condition.

Police said the bus was traveling too fast when it veered off a narrow, winding road and crashed into a tree. The driver, 24-year-old Johnthony Walker, was arrested and charged with five counts of vehicular homicide.