A 22-year-old man was charged in an attack on Alderman David Moore of the 17th Ward.
Ald. Moore said in a statement that he was responding to a constituent's call about a group of alleged prostitutes in the city's Gresham neighborhood when he was injured.
The alderman was returning home around 3 a.m. Sunday, after another incident in his ward where police were called, when he saw a group soliciting in the 7500-block of South Peoria Street.
Moore said he asked them to disperse after identifying himself as the alderman. They started yelling at him and a man struck his arm. He said once he called police, the group scattered.