At least 12 vehicles had windows shattered throughout the city late Friday or early Saturday.
It's at least the second time in the past month there has been a large number of car windows broken on the same night in Lawrence.
Roger Pfeifer said his truck's window was broken early Saturday in the 2700 block of Harper Street. He said it was the third vehicle window that had been broken on his street within the last three weeks - that he knew of.
"I think it's just somebody having fun smashing windows," he said.
Early this month, there were about 30 reports of car windows broken one night, many of them in eastern Lawrence.
In the most recent round, police say, a variety of items were used to break windows. One window appeared to have been broken by a shot from a BB gun. Another was smashed with a bat, and another apparently was smashed with a concrete brick.
"Because we have different methods, I can't confirm that they are related. I know that we're going to follow every lead on every case," said Kim Murphree, Lawrence Police Department spokeswoman.