Police found 17 vehicles with their rear windshields shattered at a parking garage in the Loop Thursday, making it the third such incident in as many days.

About 12:45 a.m., officers responded to the parking garage in the first block of East Adams Street and found 17 vehicles with rocks thrown through their rear windshields, Chicago police said. The vehicles were scattered throughout different floors of the twelve-story garage.

No thefts were reported from any of the vehicles, police said.

Police believe the incident may be related to a similar case from Tuesday, when officers found 24 vehicles damaged in the same way about 6:15 p.m. at a parking garage in the 300 block of South Franklin Street. Another incident was reported an hour later at a garage in the 100 block of West Madison Street.

One man in his early 30s is the primary suspect, police said.

No one has been arrested in connection to any of the incidents. Area Central detectives are investigating.