The company said Wednesday it was working to identify which of its stores put up the exhibit. The company's social media has since been corrected.
U.S. retailer Walmart has apologised after a picture emerged of a gun cabinet in one of its stores beneath a sign reading "own the school year like a hero". One person asked: "What are you suggesting?"
Walmart immediately condemned the display, issued an apology and called it "truly very bad". It should also be noted that despite its clearly insensitive sign placement, the store is not "selling its guns to schoolchildren".
Initial reports were the display was at a Walmart store on Evansville's west side.
"It was never confirmed the sign was [at the store in Indiana], and it wasn't confirmed that this was the store in question", Mr. Crowson said.
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This is not the first time Walmart has run into trouble with marketing mishaps.
Walmart spokesman Charles Crowson told USA TODAY the company is "certain" the incident was a ruse, but offered no other details.
'We regret this situation and are looking into how it could have happened, ' the spokesperson added.
Walmart were previously criticised for staking crates of Coca-Cola Zero to resemble the World Trade Centre as part of a campaign to commemorate 9/11. Walmart corporate said it didn't mean any disrespect and the display was quickly taken down. A NY church, for instance, petitioned in 2014 to have a shareholder vote on whether the company should sell products that "endanger public safety and well-being".