A total of four calls reporting bombs in Cartersville buildings led to two evacuations, but investigators have made no connection between the incidents.
Early Saturday morning, authorities responded to after two separate bomb threats were called in to the store.
"According to Walmart employees, each time the phone call was from a male calling from a blocked or unknown number," BCSO's Facebook update says. "BCSO investigators will work with phone providers to Walmart to attempt to discover the number that called."
During the 3 a.m. incident that lasted about an hour, the store was completely evacuated. A Walmart employee who answered a threatening call reported a male between the ages of 15 and 25 said, "There is a bomb in your store," according to the incident report.
Authorities searched for suspicious items, but found nothing.
A week ago, two morning calls closed the for five hours as authorities searched with powder-sniffing dogs.
While that search also yielded no suspicious items, investigations to determine the sources of all four of the calls are underway, although Sgt. Jonathan Rogers reported no progress in the probes.
"And as far as we can tell, there is nothing that would suggest the bomb threats are connected," he added.
If you have information on either incident, call the Criminal Investigations Division at 770-382-5050, extension 6029, or Crime Stoppers' tip line at 770-606-TIPS.