Authorities said three men, ranging in age from 65 to 73 years old, were killed in the shooting. Further details, including their identities, were not immediately available.
Two teenagers were among the three wounded, according to police, who said they had entered the business to pick up carryout food orders. A 14-year-old boy was shot in the face and airlifted to a Wisconsin hospital where his condition stabilized, while a 16-year-old girl was shot in the shoulder and taken to an area hospital where she was treated and released, authorities said.
The third person wounded was a 62-year-old man, officials said, who remains in critical condition after being shot multiple times.