SEOUL, South Korea (AP) -- The head of a food company jumped to his death after a government investigation found that his company sold dumplings made with rotten ingredients, police said Monday.

A witness said he saw the man jump from a bridge in Seoul's Han River on Sunday, a police official said.

Police have yet to find the body but found his identification card and a recently written will.

He was identified in media reports only by his family name, Shin -- the head of Vision Food, a dumpling company.

Death plunge over rotten dumplings: