A Floyd County High School senior died early Saturday when the pickup he was driving crashed head-on with an ambulance.

Mitchell Gregory Hall, 18, had been parked on the side of the road before 3 a.m. when he pulled onto U.S. 221, a mile south of Virginia 721, and directly into the path of a Floyd County Rescue Squad ambulance, police said.

There were no patients in the ambulance, which was returning to its station from a call. Three squad members suffered minor injuries.

The squad members were wearing their seat belts, said Sgt. Rob Carpentieri of the state police. Hall was not.

State police were investigating the crash Saturday. Meanwhile, members of Hall's family were trying to figure out how exactly the two vehicles crashed, and the rescue squad released a statement.

Nancy Hall, Mitchell Hall's mother, said Saturday night that her son was returning to their house in Floyd from Willis, which is about 10 miles south of Floyd. She said she wasn't sure exactly where he was coming from.

"I'm getting different versions of what happened," she said.

The statement from the Floyd County Rescue Squad said the ambulance was returning to a station in the Indian Valley area after taking a patient to the New River Valley Medical Center in Radford. The ambulance was a total loss.

The three squad members in the ambulance were treated for minor injuries and released from the New River Valley Medical Center, the statement said.

"The ambulance was not responding to an emergency call and was not traveling above the posted speed limit at the time the accident occurred," the statement said.

Mitchell Hall was a student with a special gift in math, his mother said, and was planning on enrolling in a year-and-a-half-long program at Nashville Auto-Diesel College in Tennessee after graduating high school in May.

One of his two brothers, Colton Hall, 19, is a graduate of the diesel college who lives with the family in Floyd and works in Christiansburg. Colton and Mitchell Hall were planning on opening a mechanic shop for diesel engines in Floyd after Mitchell graduated from the college, their mother said.

Hall was also an avid carpenter and had built lamps that light up the family's house, and some of the family's dog houses.

"He was an excellent carpenter. He had a really good eye for detail," Nancy Hall said. "He was just mama's pride."

Mitchell Hall worked a part-time job at a local dairy farm and was good with the care of horses, his mother said.

Friends and acquaintances of the family and students from Floyd County High School filled the Halls' home on Saturday with condolences and gifts, Nancy Hall said.

"I appreciate the outpouring of love people have had," she said. "The people in Floyd County are absolutely wonderful."