Days after the FDA issued a do-not-eat warning about imported shrimp sold at Walmart, a Florida company actually issued a recall of that shrimp and a California company recalled shrimp sold under five other brands.

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

Walmart has recalled frozen, raw shrimp sold in 13 states because federal health officials say it could have potential radioactive contamination. The U.S. Food and Drug Administration asked Walmart to pull three lots of Great Value brand frozen shrimp from stores after federal officials detected Cesium-137,