A pair of Wichita Police Department officers didn't know what hit them last night.

Shortly after 9 p.m. at 2nd Street and St. Francis, officers in a police cruiser were making a traffic stop, when an object crashed through their back window.

"They orginially believed they were being fired upon from just hearing a loud crash and the window breaking out," said WPD Lt. Todd Ojile.

The officers immediately exited their car and discovered the big bang came from a rock.

Ojile said that's when the police officers began to set up a perimeter around the Old Coleman Building, where the officers believed the rock was thrown from two to three stories above.

WPD and Park City K-9 units searched the building and found a man in his 20's hiding inside.

Ojile said the building was secure, and he said the suspect must have broken into it.

"There's a lot of locked doors," Ojile said. "You basically kind of have to know your way to get around in that building."

According to Ojile, the man originally said he just arrived in town, but police determined he actually had been in the city for awhile. Ojile said the suspect was interrogated last night at Wichita City Hall.

Police officers weren't the only people hit. Ojile said two to three other individuals called 911 with reports their vehicles were struck with large pieces of concrete in the vicinity of the police cruiser attack.

Ojile said they were attacked randomly, but he said he doesn't know why the police cruiser was hit.

"It was a fully marked police vehicle with all the markings on it," Ojile said. "Whoever the individual was who threw the rock out there would have known it was a police vehicle."

Ojile said based on the destruction the rock left behind on the police cruiser, the rock could have killed people walking nearby if they were hit in the head.

Police don't know what they will charge the man with just yet, but Ojile said it could be more than a vandalism charge.