The Jefferson County Sheriff's Office warned the public Monday about false posts circulating on social media claiming a serial killer was on the loose in ... warned to be alert & vigilant as ...

Emergency evacuation alerts have gone off the rails, pinging people seemingly at random. Experts say that such errors can sow mistrust in the alert system, potentially endangering residents down the ...

Kevin McGowan, director of L.A. County's Office of Emergency Management, said that the problem was caused by a software system glitch.