A Kentucky law enforcement officer was injured early Sunday morning in a crash investigators say was caused by a rock thrown at his cruiser.

According to Fox News, the Boyle County Sheriff’s Office announced an ongoing search throughout the state following the incident on Lexington Road in Danville.

The injured deputy was reportedly dispatched to the area southwest of Lexington shortly before 5 a.m. in response to complaints of an individual throwing stones at passing big rigs.

“As the deputy was traveling east on Lexington Road, a rock was thrown from a west bound vehicle as they passed,” a Facebook post by the agency revealed.

Authorities said that the rock smashed through through the vehicle’s windshield “and struck the deputy in the face.”

Investigators are looking for a dark-colored car in connection with the incident and expect the suspect to face a felony count of assault on a peace officer.

“The rock itself was big enough that if it had hit him in the right spot, it could have killed him,” said Sheriff Derek Robbins.

After the impact, reports indicate the cruiser ran off the road and into multiple trees before rolling and coming to a stop.

The deputy is expected to fully recover from his injuries, according to the agency.

As of the latest reports available, the sheriff’s office said a cash reward was available to anyone able to provide information leading to the arrest of a suspect. Tipsters can contact investigators by calling 859-238-1220.

[Featured image: Boyle County Sheriff’s Office]