A Hebron motorist was seriously injured on Monday in a collision with a semi-tractor trailer on U.S. Highway 30 in Washington Township, the Porter County Sheriff’s Police said.

According to police, at 2:30 p.m. James Sperry, 73, of Hebron, was westbound on U.S. 30 when, about a quarter mile east of C.R. 575E, he crossed the center line and struck the semi, traveling eastbound in the left lane, head-on.

Witnesses subsequently advised police that Sperry, driving a 2014 Ford F-150, had been “weaving in and out of westbound traffic” and had already crossed the center line once previously before the accident.

Sperry was airlifted to a South Bend hospital with “incapacitating injuries,” police said.

The trucker, identified as Fred Hundt, 66, of Knox, Ind., was uninjured, police said. Prior to the crash, Hundt had been traveling in the right lane when another semi switched lanes in front of him and began to slow, prompting Hundt to move into the left lane to avoid a rear-end collision, police said.

“No citations were issued at the scene and standard toxicology results are pending,” police added.