Whenever his happens, authorities must take it as a serious threat. The North Bismarck Walmart had to be cleared out of customers and employees after a bomb threat was called in Monday night, according to the Bismarck Tribune.

A male called the store and said he placed a bomb in the store. The store was evacuated Monday evening at 8. Police were called and searched the store. No bomb was found.

The store was clear and opened a little more than an hour later.

Every time a call of a bomb threat happens, authorities must takes these calls serious and go through normal procedure of making sure the store is clear of any explosive.

The incident remains under investigation.

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