Alcohol is believed to be a factor in a rollover crash that left the driver critically injured Wednesday evening.

Witnesses told police the driver of an SUV lost control on southbound Interstate 480 shortly after 7 p.m. when a tire blew. The vehicle veered off the highway south of the Dodge Street overpass.

The driver, Michael Tatum of Omaha, was not wearing a seat belt and was ejected from the vehicle, which rolled on top of him. His passenger, Maurice Holbert of Omaha, suffered minor injuries.

Passersby were able to roll the SUV off Tatum, who was taken to Alegent Creighton University Medical Center with life-threatening injuries.