According to AP, Maine officials are reminding consumers to check their freezers for recalled ground beef after four people were hospitalized for E. coli poisoning.

Last month, Fairbank Farms of Ashville, N.Y., recalled almost 546,000 pounds of fresh ground beef that had been distributed in September to stores from North Carolina to Maine. Federal officials have said 28 people may have become ill, and two may have died, from the possible E. coli outbreak.

The ground beef was sold at Shaw’s and BJ’s stores in Maine.

Officials says four people in Maine were found to have a matching strain of E. coli. They were all hospitalized and one remains in the hospital.

Officials say two people had purchased the recalled ground beef.