Multiple Walmarts across the country have been victim to bomb threats in recent days.

On Wednesday, two Walmarts were evacuated after a 911 dispatch center received a phone call saying that there was a bomb at a Walmart in Covington, Georgia, the Rockdale Citizen reports. "You have an hour to find it," the caller said. Shoppers and employees were later allowed to return to the store after getting the all-clear from investigators, according to MyFoxAtlanta.

In Tulsa, Oklahoma, police and firefighters evacuated a Walmart Thursday after a man called the store and said a bomb would blow up in 30 minutes, the Tulsa World reports. In addition to blocking off the entrances, cars were moved 400 feet from the store’s doors. Police searched the store and after finding nothing allowed customers and employees to go back inside.

Another Walmart in the area received a similar call that police didn't believe to be credible, according to Fox23. Investigators aren’t sure if the two threats are connected.

It seems there’s something about Walmarts that make them attractive targets for people looking to make bomb threats. A Nampa, Idaho, Walmart was evacuated in May after the store received two phone calls from people saying they were inside with bombs, a local NBC affiliate reports. The threat was ultimately deemed a hoax. Police made one arrest in connection with the incident.

A bomb scare even threatened Black Friday shopping at one Walmart last year. After an employee found a suspicious package in the break room refrigerator at a Phoenix-area Walmart, the store was evacuated and the thousands of Black Friday shoppers waiting in line for deals were told to stay far away on Thanksgiving night, MyFoxPhoenix reports. A store employee was arrested in connection with the incident, according to ABC 15.

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