A group of three to four suspects broke the glass front door of The Wiener's Circle in the 2600-block of North Clark Street about 3:35 a.m., CPD said.
Police said the suspects removed a large object, possibly a safe, from inside the building.
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They then got into a black SUV, and drove south, police said.
No one is in custody, and Area Three detectives are investigating.
The Wiener's Circle, in Lincoln Park, is known for its employees with big personalities, celebrity cameos and witty signs, in addition to its food.
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