(CNN) Some packages of butternut squash, cauliflower, zucchini and vegetable bowls sold under the brands Green Giant, Trader Joe's and Signature Farms have been recalled, according to the Food and Drug Administration.

The vegetable products were voluntarily recalled by manufacturer Growers Express due to concerns about possible contamination with the bacteria Listeria monocytogenes , the FDA said in a Monday statement.

The packaged vegetables were produced at a factory in Biddeford, Maine, and were distributed to grocery stores across the United States, primarily in Massachusetts, Connecticut, Pennsylvania and Maine. The FDA issued a list of the stores and states affected

Most of the potentially contaminated products have "Best if Used By" dates between June 26 and 29, 2019. No Green Giant frozen or canned vegetables are recalled.

"Listeria is an organism that can cause serious and sometimes fatal infections in young children, frail or elderly people, and others with weakened immune systems," said the FDA.

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