Canada.com reports that a salmonella outbreak potentially linked to produce has sickened at least 172 people in 18 states, health officials said Monday.

Health officials think the bacteria may have spread through some form of produce; the list of suspects includes lettuce and tomatoes. But the illnesses have not been tied to any specific product, chain, restaurants or supermarkets.

No one has died in the outbreak, which stems from a common form of salmonella bacteria. Eleven people have been hospitalized, health officials said.