Report: Wal-Mart in Japan insider trading probe

Tokyo - A report released Tuesday said that Japanese prosecutors will launch an investigation into possible insider trading involving shares of Wal-Mart's Japanese subsidiary Seiyu.

According to Reuters, which cited the Nikkei business daily website, the trading is suspected to have occurred when Wal-Mart turned Seiyu into a fully owned unit in 2007.

In early November, Japan's Securities and Exchange Surveillance Commission began an investigation into possible insider trading. Wal-Mart has said it would cooperate with authorities.