TOKYO, Nov. 20 (Xinhua) -- Tokyo stocks lost ground Tuesday morning as a weak lead from Wall Street overnight saw technology shares here pressured, with investors also rattled as Nissan Motor ended the morning over 4 percent down after the arrest a day earlier of its chairman Carlos Ghosn.
The 225-issue Nikkei Stock Average dropped 187.52 points, or 0.86 percent, from Monday to end the morning at 21,633.64.
The broader Topix index of all First Section issues on the Tokyo Stock Exchange, meanwhile, lost 10.00 points, or 0.61 percent, at 1,627.61.
Miscellaneous product, mining and electric appliance-oriented issues comprised those that declined the most by the morning break.