Aurora police were responding to a barricade situation in the western suburb early Wednesday.
At around 2 a.m., officers responded to the 500 block of Bangs Street for a report of a person with a gun and shots fired at another person, Aurora police said. The initial call reported shots had been fired, but the caller later said the man was "breaking out the windows of the vehicle parks in the driveway with a gun."
Authorities said the suspect barricaded himself in a home. The Aurora Police Department's Special Response Team was called to the scene, officials said, and authorities were working to make contact with the suspect to see if anyone else was in the home.
"Right now, our crisis negotiators are working to make contact with the suspect. The man is believed to be armed with a firearm," a spokesperson for the Aurora Police Department said in a statement.
According to Public Information Officer Paris Lewbel, the man is believed to be the only person inside the home.
Police said officers evacuated a few homes near the incident as a precaution and were asking anyone who lives on that block to remain inside their homes.
Further details were not immediately available.
Check back for updates on this developing story.