A man was killed when his vehicle rolled over on I-35 on Friday.

The crash happened at approximately 1:45 p.m. at 4933 North I-35. Round Rock police identified the driver as Colin Butler, 26, of Lubbock.

Butler was driving a box truck southbound on I-35 when he lost control of the vehicle while attempting to enter the FM 1431 exit ramp, according to police. Butler collided with the guardrail and exit sign. Police said that he was dead at the scene.

Surveillance video from nearby businesses show that no other vehicles were involved, according to RRPD.

The Round Rock Police Department Traffic Unit is investigating the accident.