Big Lake Police previously posted a photo of a gray Jeep asking for the public's help in locating the vehicle.

Police working to identify person putting nails, screws on roads in Sherburne County

The sheriff's office said Caouette admitted to having screws in his vehicle and had a 5-pound box of screws. He also admitted numerous times during questioning to throwing the screws on various roadways, the department said.

Big Lake police have as many as 150 reports of tires being damaged by screws, and the sheriff's office has received dozens of similar calls, according to the sheriff's office. Investigators are following up on the reports and trying to determine a motive for the actions.