ST. JOHN'S, N.L. -- Health officials say an E. coli outbreak reported in Newfoundland and Labrador in October has ended.

The provincial Department of Health and Community Services says 30 cases were confirmed in the province's eastern, central and western health authorities.

The department says in a statement that an investigation concluded spinach was the "probable source" of exposure to the bacteria.

It says there is no longer a risk to the public because the source is no longer in the food supply.

Officials say Newfoundland and Labrador was the only Canadian province affected by the outbreak, according to test results from the National Microbiology Laboratory in Winnipeg.