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The Bismarck Police Department responded to potential bomb scares Thursday that turned out to be false alarms.

The south Walmart store was evacuated after a bomb threat was called in, said Bismarck Police Sgt. Tim Sass. Police walked through the store and determined there was no threat, he said.

Walmart received the call about 8:45 p.m. Thursday and police gave the all-clear after the store had been evacuated for about an hour, said Walmart spokeswoman Tara Aston.

Police also responded to a report of a suspicious backpack reported Thursday night at the Bismarck post office. Officers took the report seriously, but determined the bag contained a pair of jeans someone had left behind, Sass said.

The reports come days after Legacy High School in north Bismarck had four bomb threats in two days.