BEDFORD, Texas (CBSDFW.COM) – The city of Bedford confirms outdoor warning sirens have gone off two nights in a row.
The emergency warning sirens sounded in the northwest part of the city without anyone activating them.READ MORE: 'My Nerves Are Still Rattled': Passenger Aboard Amtrak Train Talks Crash
The city says its system was not hacked and they are trying to figure out what caused the sirens to go off.Man, Pregnant Woman & Baby Killed In Crash Along Highway 360; Police Investigating
The sirens went off in the middle of the night last week.
Those sirens remain disabled for now.MORE NEWS: Flash Flooding: Second Body Recovered After Vehicle Swept From Texas Bridge
The cities have also brought in federal investigators to try to find whomever was responsible.