Emergency personnel responded to a single-vehicle rollover accident that resulted in a fatality west of Lexington at approximately 10:48 p.m. on Monday evening. 
The Dawson County Sheriff’s Office responded to the accident that was reported on Road 755 near the Road 431 intersection.  
The driver of the 1998 Toyota Sienna was westbound and lost control of the vehicle and slid into the north ditch and then rolled several times before striking a power pole. 
The driver of the vehicle, Jose Ricardo Velasquez Jr. of Lexington was ejected during the accident. 
The Lexington Volunteer Fire Department and Rescue Unit responded to the emergency call and also transported the injured Velasquez to the Lexingotn Regional Health Center, where he later passed. 
Authorities determined he was not wearing a seat belt. 
The cause of the crash remains under investigation by the Dawson County Sheriff’s Office.