Roland brand anchovy-stuffed olives are being recalled from retailers and food service operations across North America after consumer complaints of bulging cans spurred federal investigators to test the product.

The recall includes 3-ounce cans of olives distributed in the United States and Canada. Neither the American Roland Food Corp. nor the U.S. Food and Drug Administration have revealed specifically what the government’s testing found in the olives.

“After receiving consumer complaints of bulging cans, the FDA conducted sampling and analysis which revealed non-pathogenic microorganisms. This information was shared with the firm and they decided to conduct a recall and crafted the language,” an FDA spokesman said.

No illnesses had been reported in relation to the Roland brand “Manzanilla Olives Stuffed with Anchovies” as of this week, according to the recall notice posted on the FDA’s website. However, the recall notice states the recall is because of “a product quality issue that may pose a potential health hazard.”

“This lot of Roland Manzanilla Olives Stuffed with Anchovies was distributed nationwide and internationally to food distributors, food service customers, grocery chains, and other retail locations for further distribution or use,” according to the recall notice.

The olives are from a manufacturer in Spain and Roland company officials reported in the recall notice that they notified the manufacturer “in order to conduct a joint investigation as to what caused the problem.”

In the United States, consumers can identify the recalled anchovy-stuffed olives by the following information printed on labels and the end of cans:

“Roland Manzanilla Olives Stuffed with Anchovies” in 3-ounce cans with the Item # 71402, Lot # 95, UPC 41224714021 and a production code of either P:1201 or P1130. The cans are packed 12 to a carton. The UPC number on the cartons is 10041224714028. The lot and item numbers on the cartons are the same as on the individual cans.

In Canada, the Canadian Food Inspection Agency reports that consumers can identify the recalled olives by looking for the following label information: Roland brand “Manzanilla Olives stuffed with Anchovies” in 85 g (3 oz) cans with the Lot # 95, production codes P:1201 or P1130, and UPC number 0 41224 71402 1 on individual cans or UPC number 100 41224 71402 8 on cases.