Highway Patrol continues to investigate the single-car crash Wednesday on Interstate 40 that killed a Catawba woman.
Tabitha Spurlin, 27, died at the 138 mile marker near the Oxford School Road exit in Claremont.
"It appears that she was about to exit and made a sudden lane change and lost control of the vehicle," said Trooper C.D. Cline, of the North Carolina Highway Patrol.
Cline said he spoke with several motorists who witnessed the crash about 5 p.m. Wednesday. The drivers told Cline traffic appeared to be traveling the speed limit, so speed didn't contribute to the crash.
Spurlin was driving a Mitsubishi Montero Sport on I-40 eastbound when she crashed into the guardrail, which caused her vehicle to flip and land on the westbound side of the interstate about 30 yards away.
Spurlin wasn't wearing a seat belt at the time of the crash, and she was ejected from the vehicle. Spurlin was the only person inside the vehicle, and no other motorists were involved.
Highway Patrol is investigating the crash to determine if drugs or alcohol were involved.
Traffic on both sides of I-40 was backed up Wednesday evening for more than an hour after the crash while emergency crews worked to clear the scene.