The driver of a school bus with one student aboard was shot while behind the wheel in an apparent road rage incident Tuesday south of downtown Minneapolis and the suspected gunman was quickly arrested, authorities said.

The victim was shot sometime after 2 p.m. while in a small bus on Interstate 35W near Chicago Avenue. The person was “alert and conscious” while being taken by emergency medical personnel from the scene ahead of surgery at HCMC for noncritical injuries, said police spokesman John Elder, who called the incident “mind-numbing” and said it “raises immense concern on so many levels.”

The bus was eventually towed amid traffic already slowed by a snowstorm.

Elder said the incident unfolded when several 911 callers reported a person outside of a vehicle pointing a gun at the school bus, and that shots were being fired. Elder said State Patrol officers arrived within a minute and arrested the suspected shooter. A gun, believed to be a semiautomatic weapon, was taken from him.

Authorities identified the suspect as Kenneth W. Lilly, 31. He was booked at Hennepin County jail Tuesday night, where he’s awaiting formal charges of second-degree assault.

Lilly, of Minneapolis, does not appear to have a criminal record in Minnesota beyond minor traffic violations. Lilly’s mother said he works as a security guard.