CHICAGO — Police were called to several libraries in the Chicago area on Tuesday in regard to bomb threats. Police in Aurora continue to investigate the threats but officers in Evanston and Addison say the threats were not substantiated. 

Threats in Aurora

Police in Aurora say officers are investigating reports of bomb threats at three Aurora libraries on Tuesday afternoon. 

Aurora police first notified the public about the threats in a tweet shared around 3 p.m. 

In a follow-up post, officers asked the public to avoid areas near the 100 block of South River Street, areas near the 500 block of South Eola Road, and areas near the 200 block of South Constitution Drive, while they work to evacuate and shut down roadways. 

Police have not offered updates regarding how the threats were placed, but say officers are on scene at all three locations. 

Threats in Evanston

Evanston police are investigating reports of a bomb threat at the Evanston Public Library in the 1700 block of Orrington Avenue.

Police first notified the public about the reported threat around 4:30 p.m. 

Police say the Cook County Sherriff’s Bomb Squad was called in and the building was evacuated, however, officers say no threat has been substantiated. 

Police are asking the public to avoid the area while they conduct their investigation.

Threats in Addison

Police in Addison say officers responded to reports of a bomb threat at Addison Public Library on 4 Friendship Plaza on Tuesday. 

Addison police say the Village and Library campuses were closed to the public while the DuPage County Bomb Squad searched the building.

Police say they have since determined that the threat was unfounded.

This is a developing story, stay with WGN News for the latest updates.