A rollover on U-111 critically injured a Magna man Monday evening.

The accident occurred about 10:10 p.m. near 11300 South, said South Jordan Police Sgt. Kevin Worlton.Speed was apparently a factor in the rollover that sent Michael Phillips, 34, by ambulance to Jordan Valley Hospital in critical condition, Worlton said. Phillips was later transported by medical helicopter to University Hospital where he was in fair condition Tuesday.

There was no indication the man was wearing a seat belt, Worlton said. The man was alone at the time of the accident.