NORTH HAVERHILL, N.H. — A New Hampshire company is recalling about 8,800 pounds of raw beef products that may be contaminated with E. coli, some of which has been distributed in Maine.

The U.S. Department of Agriculture’s Food Safety and Inspection Service announced the recall on Tuesday. It affects ground beef, ground beef patties and other sub-primal cuts produced by North Haverhill-based PT Farm. According to the USDA, the affected products are:

• Various weights and various sizes of raw intact and raw non-intact “Chestnut Farms” beef products packed in cardboard boxes;

• Various weights and various sizes of raw intact and raw non-intact “PT Farm” beef products packed in cardboard boxes;

• Various weights and various sizes of raw intact and raw non-intact “Miles Smith Farm” beef products packed in cardboard boxes;

• Various weights and various sizes of raw intact and raw non-intact “Robie Farm” beef products packed in cardboard boxes.

The raw, intact and non-intact beef products were produced between June 6 and June 16, and bear the establishment number “M8868” inside the USDA mark of inspection. Products were shipped to retail locations and for institutional use in Maine, Massachusetts, New Hampshire and Vermont. A retail distribution list from the USDA was not available as of 10 a.m. Wednesday.

People who have purchased these products are urged not to consume them. The Food Safety and Inspection Service was notified July 20 of a cluster of 14 people who were sick and had consumed the beef products. An investigation in ongoing.

Symptoms of an E. coli infection include severe stomach cramps, diarrhea, fever, nausea and vomiting.