Indianapolis man dies in head-on collision with semi on US 421

An Indiana State Police SUV. (Provided Photo/Indiana State Police-Sellersburg on Facebook)

NAPOLEON, Ind. (WISH) — A 47-year-old Indianapolis man died in a head-on collision with a semitractor-trailer on Wednesday morning in southeastern Decatur County, Indiana State Police say.

Joseph L. Arthur died in the crash reported just before 7 a.m. Wednesday on U.S. 421 near County Road 700 East. That’s a rural area with a few homes just northwest of the Decatur County border with Ripley County, and about a 15-minute drive southeast of the city of Greensburg.

Investigators think Arthur was driving a 2010 Pontiac “passenger vehicle” southbound on U.S. 421 when, for an unknown reason, he lost control, crossed the centerline, and collided with a northbound 2014 Freightliner semi pulling a trailer, according to a news release issued Wednesday night from state police.

Michael S. Olsen, 55, of Charlotte, Michigan, was driving the semi, which burst into flames after the crash. He exited the semi with minor injuries, state police say.

Crash reconstructionists, who had not completed their work as of Wednesday night, believe speed may have been a factor in the fatal crash.

U.S. 421 was closed in both directions for about five hours for the crash investigation and cleanup.