CHICAGO (AP) — A suburban Chicago businessman has been arrested on bribery charges after allegedly offering $100,000 to an indicted city official in exchange for getting five restaurant locations at Chicago airports.

A complaint filed in federal court Thursday says Wafeek Aiyash of Naperville paid the official $9,000 and promised $100,000 if he got the locations.

But authorities say the official was secretly cooperating with investigators and recorded many of the conversations. They say the official himself had been charged with bribery.

Alderman Isaac Carothers fits the description of the anonymous cooperating witness; he is charged with taking money from a developer in exchange for a zoning change. His attorney, Lawrence Beaumont, would not say if was Carothers.