Both incidents outside Phillipsburg followed 911 calls about an armed person inside the Route 22 supercenter.
For the second time in two nights, authorities on Monday evacuated the Wal-Mart Supercenter in Pohatcong Township due to a 911 call about an armed person inside, township police confirmed.
Both calls were found to be unfounded, and employees and shoppers were allowed to return to the 1300 Route 22 store, police Detective Sgt. Scott Robb said.
"At this point we don't feel there's any danger to the public," he said Monday night.
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The first incident occurred Saturday night. Both times, the 911 caller reported someone with a weapon was inside. Each time, police from Pohatcong and surrounding municipalities responded and searched the evacuated building.
"There was nobody inside," Robb said Monday night. "This is the second one we've had in the past couple of days. We're currently investigating."
Kurt Bresswein may be reached at kbresswein@lehighvalleylive.com. Follow him on Twitter @KurtBresswein. Find lehighvalleylive.com on Facebook.