The Kellogg Company has issued a recall for a variety of snacks and cookies because the products may contain peanut residue. The announcement marks the latest in a string of recalls related to a supplier’s peanut-tainted flour.

Affected products include select packages of Mother’s, Keebler, Kellogg’s Special K brownies, Murray and Famous Amos snacks and cookies distributed throughout the US and Puerto Rico.

Kellogg’s flour supplier Grain Craft issued its own recall after samples of its flour tested positive for peanut residue. Frito-Lay and Hostess, which both use Grain Craft as a supplier, issued recalls last week for a variety of snack cakes, doughnuts and pretzel products.

According to FDA, Grain Craft first notified the agency in April that a sampling by a customer found peanut residue in cookie. Further analysis revealed the source of the residue to be the flour. FDA collected samples at Grain Craft and found evidence that some soft red winter wheat flour contained peanut protein. Grain Craft ceased manufacturing and distribution of its soft red winter wheat flour on April 30.