Ahi tuna product sold at Costco in 33 states recalled over listeria concerns

(NEXSTAR) – A Kirkland-brand ahi tuna product has been recalled from Costco locations in 33 states over concerns that a component may be contaminated with listeria monocytogenes, according to a notice posted by the U.S. Food and Drug Agency.

The recall was issued after the Western United Fish Company of Kent, Washington — which produces the product for Costco — was notified that some of the green onions used in the product had tested positive for listeria monocytogenes. The company said that a “root cause” for the positive test result had not been identified as of Saturday.

The product was sold at Costco locations in 33 states, according to the notice: Alabama, Alaska, Colorado, Connecticut, Delaware, Florida, Georgia, Idaho, Indiana, Louisiana, Maine, Maryland, Massachusetts, Minnesota,