Mankato Department of Public Safety investigating twelve reports of car windows broken out onThursday. Most of the damage happened in a four block area. Vehicles parked on the street in the old hilltop area being targeted. Authorities believe the suspects are driving–by and shooting at the vehicles. Mankato Department Of Public Safety, Patrol Commander, Dan Schisel, said, "We believe it to be a pellet gun is how they are causing the damage." Anyone with information is asked to call Mankato Police at 507–387–8780. Or, call 9-1-1 to report any suspicious activity.