GRAYSON COUNTY, Tex. -- A woman is dead following a major accident in Grayson County around 2 p.m. Tuesday at FM 406 and Kelsoe Road near Pottsboro.

Witnesses say 53-year-old Debra Michael, of Denison, was driving a pickup truck at high speeds when she ran off the road and the vehicle flipped three times.

First responders say Ms. Michael died at the scene.

State troopers are investigating the cause of the crash.