The US Food and Drug Administration has issued a blueberry recall at the highest possible level after the fruit was found to contain listeria, a disease-causing bacteria.

Thousands of pounds of organic blueberries are being recalled because they may be contaminated with listeria bacteria. FDA gives highest risk warning.

Alma Pak International LLC issued a voluntary recall for 400 boxes of its organic blueberries on June 9 due to possible listeria contamination.