"We have recognised the problem. Mislabelling of food products is definitely against our laws," Takanori Nagatomo, an official with the whaling section of the Fisheries Agency, said Thursday.
"We will take administrative action against those who are involved in selling dolphin meat as whale meat," he said.
He was unable to say, however, exactly what action the government would take to deal with the problem, which an international anti-whaling group said Wednesday was widespread in Japan.