This sound is frightening.

Crowley Police drove through the city Thursday night blasting what they call an "audible alarm" to notify citizens that they were under curfew and not allowed to leave their home until 6 am Friday morning.

The alarm is not your traditional siren and to be quite honest, it is a very eery sounding alarm. Some have compared the sound to you hear alarms in movies.

The police department went to Facebook to warn the citizens of Crowley of what was to come, but many were still caught off-guard by the sounds coming from the police units.

Check out some of the videos below and tell me what you think? Would this have scared you at 9 pm had you not been aware of this?