TOWN OF IRONTON, Wis. -

An Indiana man was killed when his car overturned multiple times on a county road in Sauk County Thursday night, according to a release from the Sauk County Sheriff’s Office.

Deputies were called to County Road K near the intersection of Pickel Road in the town of Ironton at 8 p.m. for a report of a single-vehicle rollover crash.

The first responders to get to the scene said the driver was ejected and a bystander was performing CPR when they arrived.

Investigators said Gerald L. Carlson, 37, of Gary, Indiana, was speeding east on County Road K when he lost control of his car while negotiating a curve. The car went into the north ditch, overturned multiple times and landed on its top.

Carlson was not wearing a seat belt and speed was a factor in the crash, according to deputies. He was pronounced dead at the scene.