Officials say hacking apparently is to blame for the recent sounding of emergency warning sirens in Genesee County.
The county's 911 executive board director Mark Emmendorfer says the tones of the sirens Tuesday in the Flint area suggest hacking. Officials previously blamed an apparent malfunction.
It's the third time in about a month that the sirens used during for tornado warnings and civil defense emergencies went off when there was no emergency.
