A professor at Washington State University’s School of Mechanical and Materials Engineering was transported to the hospital Sunday morning after his truck left the roadway on State Route 270 east of Pullman and hit a rock wall, according to the Washington State Patrol.

Hussein M. Zbib, 60, of Pullman, was heading west when his truck struck the wall near Sunshine Road, rolled and came to rest in the west shoulder just before 7 a.m., according to WSP.

Zbib has been a professor since 1988 at the engineering department, according to his faculty bio. He was previously a director of the School of Mechanical and Materials Engineering from 2004 until 2011, according to the WSU news service.

He was not wearing a seat belt, according to WSP. Drugs and alcohol were not a factor in the crash, WSP said.

Zbib was a patient in the Sacred Heart Medical Center emergency department in Spokane as of 11 a.m. Sunday, according to the hospital. His condition was listed as critical at 2 p.m.

Zbib’s Toyota Tacoma was totaled, according to WSP.

WSU could not immediately be reached for comment.