Canada's food watchdog says it's following a salmonella outbreak in the U.S. suspected to be linked to fresh tomatoes.

A total of 57 cases of salmonellosis were reported in New Mexico and Texas between April 23 and June 1. Investigators are currently looking into another 30 cases in Arizona, Colorado, Idaho, Illinois, Indiana, Kansas and Utah.

While no illnesses have been reported in Canada, the Canadian Food Inspection Agency said Tuesday it is working with the U.S. Food and Drug Administration and will remove affected tomatoes from the marketplace if they are identified as the source of contamination.

In the meantime, the CFIA says consumers should wash tomatoes under running water thoroughly and wash their hands with soap and warm water before and after handling tomatoes.

Common symptoms of salmonella infection include nausea, vomiting, abdominal pain and diarrhea, although more serious consequences are possible, especially in children, the elderly and those with weakened immune systems.