The body of Callie Morris, a 21-year-old missing nursing student, has been found, and police now believe she died in a car accident under Highway 63 in Oklahoma.

Fox News reports investigators suspect Morris perished in a single-car accident while returning to her Oklahoma home from nearby Hot Springs. The Leflore County Office of Emergency Management DS authorities have recovered the 2004 tan Tahoe the Henderson State University student was traveling in.

According to KFOR.com, after a three-day search the car was found overturned and partially submerged under water near State Highway.

Investigators suspect the accident occurred after Morris' vehicle "drifted off the road" and first struck a guard rail, before traveling 30 feet and hitting an embankment. Authorities are still investigating how the vehicle than traveled some 60 feet and became submerged under water.

Law enforcement officials said no foul play is suspected, and the body was found inside the vehicle with the victim still wearing her seat belt.

Investigators had used cell phone data to track Morris' last whereabouts, which was in the area where her vehicle was found. School officials said she often used that same route for her travels back and forth from Mena to McAlester.

On Sunday afternoon, HSU students held a vigil for Morris.

"We're all stunned," HSU President Glendell Jones, Jr told KATV.com. "Whenever you see the life of an outstanding young person end so suddenly it creates a tremendous amount of sadness"

Later Doyle Morris spoke to 4029TV of his daughter's tragic fate.

"It's really traumatic," he said. "She was very upbeat, very happy, wanted to come home and see here two baby nephews."

Fellow HSU freshmen student Lindsey Duncan also spoke of the tragedy.

"if somebody goes missing, if somebody is hurt it's like this huge thing it just goes out and it just explodes," she explained. "I was just kind of worried about her."

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