Some terrifying audio and video (above) is coming out this morning from Utah, where a parent called 911 from a school bus after the driver began swerving erratically on a highway.

The bus was carrying 67 elementary school students on a field trip, along with parent chaperones.

One of the parents told the 911 operator, "I'm honestly shaking at this point," after the driver nearly swerved into another vehicle and kept veering in and out of lanes.

Officers pulled the bus over a short time later and arrested the 39-year-old driver on suspicion of DUI. Prescription pill bottles were found in her purse, police said.


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More details from AP: 

Utah Highway Patrol Sgt. Blaine Robbins said Monday that authorities suspect Lycia Martinez had taken prescription anti-anxiety/muscle-relaxer pills.

Robbins says a motorist and a parent on the bus made 911 calls about the erratic driving.

Davis School District spokesman Chris Williams says Martinez has worked for the district for six years. She's on paid leave during the investigation.

Martinez doesn't have a listed phone number, and it's unclear if she has an attorney yet.

The fifth- and sixth-graders made it to a student council conference at Brigham Young University after another driver shuttled them the rest of the way.


UPDATE: Will Carr reported some more details on the dangerous situation this morning. 

He said Martinez told authorities she was not under the influence, blaming the erratic driving on a lack of sleep. Carr said Martinez had a clean record before this.

Watch the report below: 


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