Late Saturday night Dallas residents were startled by emergency alarms going off all over the city but there wasn't any storms or actually emergencies, Just hackers. All 156 sirens were activated at 11:42 pm reports NBC News and continued to go off until after 1am.

City officials have not said how the hack happened but due to security reasons said they're doing everything it takes to make sure this never happens again. It's not sure yet who was behind the cyber attacks and if their motives were to pull a prank or to test out the sirens for something worse.

The city has said they've narrowed down to a certain area who they think were involved and will prosecute anyone who is involved.