Someone in the Midwest is angry at Walmart.

Police are investigating a rash of bomb threats called in to 11 Walmart stores in Missouri and Kansas over the weekend.

The threats, described as "robo-calls" because they sounded recorded, led to quick evacuations at eight stores across Missouri and three others in Lawrence and Leavenworth in Kansas. Searches for explosive devices at the stores found none.

In total, eight stores across Missouri received bomb threats while two more store locations, in Leavenworth, Kan., and Lawrence, Kan., also received similar calls. The Fredericktown Walmart received a call at 6:45 p.m. on Friday, according to ABC17. No devices were found at any of the stores.

"It was an automated call and the voice said there's a bomb in the building. You have two hours to get everybody out this store. This is not a joke," Fredricktown, Missouri Police Chief Eric Hovis said of the call that came into his local Walmart at 6:45 p.m. on Friday.

A Missouri TV station reported that Walmart locations in Jefferson City, Nixa, Ozark, Raytown and Gladstone also were closed because of bomb threats. All stores had reopened by Saturday evening.

But the threats didn't end. On Sunday, two Kansas locations received the threatening calls. Leavenworth Deputy Police Chief Dan Nicodemus told that a call to a Walmart in Grand View, Mo., threatened a store in Leavenworth.

Former FBI profiler Brad Garrett told ABC that the incidents have prompted police to look for possible connections.

"You had a number of them Friday night in Missouri, and so could that have been the same person?" Garrett said. "Obviously the caller has got some issue with Walmart. They got fired perhaps … they had some issue with Walmart in the present or the past."

Walmart spokesman Dan Fogleman said the company is working with law enforcement to identify who is behind the threats.

Loading Slideshow...
  • Walmart Calls Police On School Chorus

    A Walmart in Florida complained to police of a <a href="" target="_hplink">"flash mob situation" after a school choir sang "God Bless America"</a> in memorial of the Septemeber 11th, 2001 attacks, the <em>Sun-Sentinel</em> reports.

  • Couple Arrested For Sexual Activity In Walmart

    Julian R. Call, 22, and Tina F. Gianakon, 35, were arrested for <a href="" target="_hplink">engaging in sexual activity</a> in front of fellow shoppers at a Kansas Walmart after stealing K-Y Jelly.

  • Pension Fund Boycotted Walmart For Poor Labor Practices

    Netherlands' biggest pension fund -- it holds over $300 billion in assets -- <a href="" target="_hplink">pulled its investments from Walmart for not abiding</a> with the United Nations' Global Compact principles, which relate to human rights, labor standards, the environment and anti-corruption efforts.

  • Walmart Involved In Mexico Bribery Campaign

    When Walmart senior executives found out that Walmart de Mexico <a href="" target="_hplink">had allegedly been involved in a bribery campaign </a>to open new stores, they then allegedly covered it up.

  • Walmart Threatened To Fire Mormon Worker For Observing Sabbath

    A Mormon assistant manager at Walmart, who had been <a href="" target="_hplink">observing the Sabbath as an employee</a> for more than ten years, faced disciplinary action after a change in their scheduling rules no longer accommodated his observance.

  • Man Died After Brawl With Walmart Security

    Jose Marcos Picazo <a href="" target="_hplink">suspiciously died after Walmart security </a>guards in California arrested him for alleged shoplifting.

  • Walmart Lobbied To Change Anti-Bribery Laws

    Walmart was involved in <a href="" target="_hplink">a lobbying campaign to weaken</a> the Foreign Corrupt Practices Act, which was meant to reduce liability for bribing foreign officials.

  • Walmart Involved In Many Sex Discrimination Suits

    Walmart has been involved in a number of ongoing lawsuits for discrimination against<a href="" target="_hplink"> female employees. Some of the allegations </a>have included derogatory language at the workplace, unfair promotion practices and pay discrimination.

  • Walmart Customer Injured Others To Win Black Friday Deals

    A woman wanted <a href="" target="_hplink">cheap Black Friday deals on Walmart </a>electronics so badly that she used pepper spray on a crowd at a Los Angeles Walmart. Twenty people were injured.

  • Walmart Contractor Sued For Labor Law Violations

    Warehouse workers in California sued a contractor that works with Walmart for labor law violations, including poor labor conditions, shortchanging pay and threatening <a href="" target="_hplink"> to fire them for complaining about anything.</a>

  • Walmart Exposed For Political Lobbying To Weaken Labor, Whistleblower And Environmental Laws

    New York City public advocate Bill de Blasio recently launched to expose Walmart secret <a href="" target="_hplink">political spending</a>, meant to influence the political process in a number of ways, including reducing protection for workers, whistleblowers and the environment.

  • Walmart Employee Shot Supervisor, Killed Himself

    A Walmart employee at a distribution center in Virginia shot and <a href="" target="_hplink">wounded his female supervisor</a> right before he killed himself.

video platformvideo managementvideo solutionsvideo player