Officials say the oysters, clams, mussels and scallops may be contaminated human waste and norovirus.
The FDA said it is in talks with South Korean authorities to resolve the issue. FDA spokesman Curtis Allen said the call for the removal of the mollusks from the market was precautionary.
"We want to ensure that all foods coming into the United States are safe for consumption," Allen said.
An FDA evaluation that determined that the Korean Shellfish Sanitation program no longer meets adequate sanitation controls.
Concerned consumers were advised to check the package label for country of origin or to contact the store where the shellfish was purchased or the manufacturer. The FDA recommends consumers dispose of mulluscan shellfish from Korea or any products made from them.
The Associated Press contributed to this report.