(UPDATED COVERAGE, Aug. 7) A Michigan produce company is recalling 5,400 Athena cantaloupes from an unidentified supplier because of potential listeria contamination.

Heeren Bros. Produce, Grand Rapids, Mich., issued a recall statement Aug. 6. It said the recalled cantaloupes had been distributed to “small independent grocers” in Michigan from July 23-26. No illnesses had been reported in relation to the cantaloupes.

The cantaloupes do not have any identifying stickers and Heeren Bros. did not name the supplier in its recall announcement.

A random sampling by the Food and Drug Administration revealed the potential listeria contamination, according to the company statement.

“After receiving notice from the FDA, Heeren Brothers Produce immediately alerted retailers and requested that they remove the produce from their shelves,” the company announcement states.

“Heeren Brothers Produce has also contacted the supplier of the cantaloupes. The source of the potential issue is still under investigation. Heeren Brothers Produce is cooperating fully with the FDA.”

A third-generation produce company that was founded in 1933, Heeren Bros. handles a variety of fresh fruits and vegetables and has a fresh-cut division. None of their other products are implicated in the recall.

“We have product handling and safety protocols in place,” the company statement said. “A recent audit by an independent, third-party laboratory rated our procedures as excellent in the industry.”