The Department of Public Safety is investigating whether drugs or alcohol played a role in a Friday night accident that resulted in the deaths of three Bryan residents.
Officials say the single-vehicle rollover happened on a private road off FM 50 near Mumford around 10:45 p.m.
According to DPS, Harrison Cory Owens, 20, was driving his pickup at a high rate of speed in a cotton field when he lost control and flipped several times.
One of the passengers in the truck, Steven Douglas Glenn, 20, of Bryan, died at the scene.
Owens, of Bryan, and another passenger, Hannah Foster, a junior at Bryan High School, were taken to Scott and White in Temple where they later died from injuries they sustained in the crash.
The accident's sole survivor, 21-year-old Calvin John Winters of Bryan, was taken to St. Joseph Regional Health Center where he was transferred to another facility in stable condition.
No one in the truck was wearing a seat belt, according to DPS.
Chemical tests were taken from the driver and submitted to DPS as part of the agency's investigation, officials said.
Hannah Foster is the daughter of a Bryan ISD employee. An account is being established at Citibank for the "Hannah Foster Memorial Fund" to establish a scholarship or remembrance in Hannah's memory. Checks can be made payable to this account, sent to Mary Walraven (Hammond-Oliver Annex, 1307 Memorial Drive, Rm. 200, Bryan, TX 77802).