Burglars broke into a locked gate over the weekend and stole nearly $70,000 worth of tires and wheels from Lakeside International Trucks on Manufacturers Drive, police say.
An employee discovered the thefts Monday morning, according to a Madison Police Department incident report.
Tractors and dump trucks were missing a total of 68 tires and wheels.
The vehicles had been propped up on bricks and other things.
Lug nuts were left scattered throughout the business yard.
Anyone with information on the break-in is urged to contact Madison Area Crime Stoppers at (608)266-6014.