Tokyo stocks ended sharply lower on Friday with the market spooked by news that Russian troops attacked Europe’s largest nuclear power plant in Ukraine. The benchmark Nikkei 225 index was down 2.23 pc or 591.80 points at 25,985.47, while the broader Topix index fell 1.96 pc or 36.86 points to 1,844.94. The dollar stood at 115.49 yen, against 115.45 yen in New York late Thursday.