Ever hear a siren and wonder what’s happening and where? Want to investigate what's going on in your neighborhood, near your office or around your child’s school? The new Chicagoland Sirens app is for you.

Drawing on the Chicago Tribune's breaking news staff and www.radioman911.com, Chicagoland Sirens provides data on emergency calls throughout Chicago and the suburbs: an accident on the expressway, a shooting, a house fire, an evacuation. Whatever matters most to you.

Chicagoland Sirens allows you to save multiple search locations, letting you track activity at home, at work, wherever you want. You can even activate notifications to receive updates.

(Chicagoland Sirens does not carry every emergency call in the Chicago area. The information is reported as quickly as possible, but may be incomplete.)