U.S. health officials are investigating a new outbreak of salmonella illnesses tied to a Florida grower whose tainted cucumbers were linked to more than 550 illnesses last year.

Cucumbers grown by Florida-based Bedner Growers and distributed by Fresh Start Produce Sales have been linked to illnesses in at least 26 people in 15 states, the U.S. Food and Drug Administration reported late Monday. At least nine people have been hospitalized; no deaths have been reported.

The cucumbers were sold to restaurants, stores and food service distributors between April 29 and May 19 and may still be within their shelf life this week. Illnesses were reported between April 2 and April 28, according to the U.S. Centers for Disease Control and Prevention.