TOKYO, July 26 (Xinhua) -- Tokyo stocks lost ground Tuesday morning as a poor showing on Wall Street overnight as oil prices dropped dented sentiment here, with the yen's appreciation against the U.S. dollar also contributing to a dour market mood.
The 225-issue Nikkei Stock Average lost 257.41 points, or 1.55 percent, from Monday to 16,362.88.
The broader Topix index of all First Section issues on the Tokyo Stock Exchange, meanwhile, fell 20.38 points, or 1.54 percent, to 1,304.98.
The majority of industry categories on the main section had retreated into negative territory by the morning break, with iron and steel, security and mining-linked stocks comprising notable decliners.
