A Washington frozen food processor has issued a recall for 15 frozen vegetable products because the items could potentially be contaminated with Listeria monocytogenes, according to FDA.

No illnesses associated with the products have been reported, but CRF Frozen Foods says it is recalling the products as a precaution. The Listeria was discovered through routine testing by state health officials in Ohio. Listeria monocytogenes was found to be present in one lot of Individually Quick Frozen (IQF) organic petite green peas and one lot of IQF organic white sweet cut corn.

Recalled items—primarily peas, sweet corn and mixed vegetables—were sold in plastic bags distributed between Sept. 13, 2015 and March 16 in the following states, and may be redistributed in other states nationwide: AL, AZ, CA, CO, CT, DE, FL, GA, ID, IL, IN, LA, MD, MA, MI, MN, MO, MT, NV, NH, NJ, NY, NC, OH, OR, PA, RI, SC, TN, UT, VT, VA, WA, WV, WI, and in British Columbia, Alberta, Manitoba, Saskatchewan of Canada.