Police were looking for a burglar who threw a brick into a commercial building Sunday morning in the Loop.
At 3:37 a.m., a burglar alarm went off in the 200 block of South State Street, according to Chicago police. Officers found a brick that was used to shatter the front door of a business establishment.
The burglar broke into the building, police said, but it was not immediately known whether items were stolen. No one was in custody.