Some packages of Great Value frozen shrimp sold at Walmart are at risk for potential for Cesium-137 contamination, the FDA says.

Certain raw frozen shrimp products sold in Walmart under the Great Value brand have been recalled after Cesium-137, or Cs-137, was detected in shipping containers at four U.S. ports, according to the Food and Drug Administration.

Great Value brand frozen shrimp sold at Walmart stores in Ohio could be contaminated with Cesium-137, warns the FDA.