Updated Tuesday at 10 p.m.

Livingston County Sheriff Bob Bezotte said the victim in today's accident at Hartland High School is still listed in critical condition at the University of Michigan hospital.

"She was in and out of consciousness, so that's a good sign," he said. 

According to Bezotte, excessive speed and drugs may have played a factor in the accident.

"Speed is a factor as well as possible marijuana use since we found marijuana in the car," he said. "But that has to be verified."

The suspect came in for drug testing and was released to his parents and a search warrent was issued. Results from the drug test could take up to 3 to 6 weeks, according to Bezotte.

Tuesday, 5 p.m.

A female security guard was hit by a car around 2:30 p.m. today in the parking lot of Hartland High School, according to principal Chuck Hughes. 

The name is being withheld, but Hughes said the woman was coherent as she was being transported to University of Michigan hospital.

According to 16-year-old Melissa Maloney who was riding two cars back from the accident, the female security guard was hit by a teen driver in a black Sable and thrown into the air.

“She was hit by the front left of his corner and she flew up in the air, I thought she flew off the back end of the car, it was pretty high,” she said. “Then she hit the truck and then hit the cement.”

Malonie said that students were jumping out of their cars rushing to the injured woman who was speaking after being hit.

“She said a few things as we were leaving,” the 16-year-old said. “Something like her back hurting.”

Malonie said the driver was upset and confused after the accident.

The security guard, who according to Hughes has been directing traffic at the high school for 12 years, was unclear what happened during the accident.

“I don’t know the details,” Hughes said. “They’re going to do an accident investigation with the Livingston County Sheriff’s department to determine what really happened.”

The condition of the patient is unknown at this time.