UNION GROVE, Wisconsin -- Officers were searching for a suspect early Monday morning after three people were killed Sunday during a festival at a drag-racing strip, reports say.

The three male victims were shot at "point-blank" range at about 7 p.m. while standing near a food vendor in the parking lot at Great Lakes Dragaway, the Milwaukee Journal Sentinel reports.

Two of the victims died at the scene, while a third died en route to a hospital, according to the Kenoshaw News.

Police say the suspect is in his 20s and was driving a black car, WDJT Channel 58 reports. The sides of his head are shaved in what is known as a high-top fade haircut. He was wearing a black hoodie and jeans.

Kenosha County Sheriff David Beth tells the News that the motive is unknown.

"We're not aware of any altercations that happened earlier. At this point we're not aware of exactly what caused this," Beth said, the Journal Sentinel reports.

About 5,000 people were at the festival, Larry's Fun Fest, when the shooting occurred, reports say.

"This is not indicative of this crowd," Great Lakes Dragaway volunteer Brian Mitchell tells fox6now.com. "This is isolated and this is somebody who had a grudge with somebody, and they came here and they really ruined a family event for people."

If you'd like to comment on this post, please visit the cleveland.com crime and courts comments section.