AVON, Ind. (WTHI) - Former Indianapolis 500 champion Al Unser, Jr. was arrested for driving under the influence.
Police in Avon booked Unser, Jr. into the Hendricks County Jail around 3:20 Monday morning.
According to the probable cause affidavit, Unser was driving 59 in a 45 mile per hour zone.
It allegedly happened at the Ronald Reagan Parkway near U.S. 36.
Once pulled over, the officer said Unser lost his balance and fell down an embankment.
He was charged with operating while intoxicated, improper lane usage, and speeding.
Avon Police say Unser was openly hostile towards officers during this altercation.
See the full probable cause below, or click here.