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ST. BERNARD PARISH, La. - Don't be alarmed by a loud siren in St. Bernard Parish on Wednesday.

It is part of a test of the parish's emergency system.

In case of an actual emergency, the system will be used to warn St. Bernard residents in the event of a tornado, a chemical spill or a train derailment.

The test will also include a radio broadcast on 1680 AM.

It will begin at 1 p.m. and will last for about 3 minutes.

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