TOKYO, June 20 (Xinhua) -- Tokyo stocks were mixed Wednesday morning as investors both bought on dips and sold on the back of a global sell-off.

The 225-issue Nikkei Stock Average edged up 8.94 points, or 0.04 percent, from Tuesday to 22,287.42.

The broader Topix index of all First Section issues on the Tokyo Stock Exchange, meanwhile, lost 9.05 points, or 0.52 percent, at 1,734.87.

Food, pharmaceutical and electric power and gas-linked issues led notable advancers, while iron and steel, marine transportation and mining-oriented stocks comprised those that declined the most by the morning break.