TOKYO, Sept. 6 (Xinhua) -- Tokyo stocks ended lower on Friday, with the Nikkei index extending its losing streak to the fourth day to end at a fresh three-week low, as the yen's recent strength pressured exporters while caution prevailed before the release of U.S. jobs data later in the day.
Japan's benchmark Nikkei stock index, the 225-issue Nikkei Stock Average, ended down 265.62 points, or 0.72 percent, from
