"He said, 'Mom, there's something metal poking out of the handle,'" said Lisa Zimmerman, who discovered a long razor blade, such as those found in utility or box-cutting knives, was embedded in the handle.

Zimmerman said that she likely would have sliced her hand had she wiped the handle with a sanitizing wipe.

In a Tuesday morning telephone interview, Zimmerman said her immediate reaction was to notify store managers. Two managers responded, she said.

"They handled it well. They were just as upset about it as I was," Zimmerman said.

Prompted by a friend, Zimmerman also reported the incident to law enforcement shortly after 8 a.m. Monday, according to Bismarck Police Sgt. Mark Buschena, who also asked members of the public to report any similar incidents by calling 701-223-1212.

People can also call anonymously at 701-224-8477.

Buschena said police have not received any similar reports.

"I told the people that I should have told, and then from there I thought it was in their hands," Zimmerman said.

"Nobody got hurt. Nobody got cut," she said, adding that her only concern was raising public awareness.

Betsy Harden, a Wal-Mart spokeswoman out of the company's Bentonville, Ark., headquarters, said the company was aware of the report.

"We appreciate the customer bringing this to our attention, and we're relieved that no one was injured," said Harden, reporting that store employees inspected all shopping carts at the south Wal-Mart location and found no other razor blades. "We're looking into this. We take it very seriously."

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