Skokie police responded to Erik's Bike Board Ski in the 3800-block of Oakton Street at about 3:55 a.m. and discovered that someone had entered the store. Chopper 7HD flew above the scene as officers created a perimeter around the store.
Officers then searched the store, but no suspects were located.
Chicago police said a canine unit assisted Skokie police.
Streets in the area have were closed to traffic. CTA 97 Skokie buses were temporarily rerouted via Oakton, McCormick, Howard and Crawford due to a closure near Oakton and East Prairie.
Shortly before 9:30 a.m., Skokie police said the roads in the area were back open.
Anyone with information is asked to contact Skokie police at 847-982-5900.