Published: Jul 10, 2011 2:28 PM EDT
Updated: Jul 10, 2011 1:30 PM EDT

CHICAGO (AP) - Police say a suspicious package that forced the evacuation of Chicago's Millennium Park did not contain explosives and was left there by people participating in a "role-playing event."
 
The police department issued a statement late Saturday saying the package contained two bricks and that detectives are questioning three people in relation to the incident.
 
Police were told of the package at about 5:30 p.m. on Saturday and emptied the crowded park while officers inspected it.
 
Officer Darryl Baety, a police spokesman, says the package was wrapped in duct tape and had wires sticking out of it. It was left near the Cloud Gate sculpture, which looks like a giant metallic bean and is one of the park's biggest attractions.