Tokyo stocks were flat Friday morning as risk adverse selling following a weak tone set by Wall Street overnight was offset by buying on the yen's retreat against the U.S. dollar.

The 225-issue Nikkei Stock Average shed 2.75 points, or 0.01 percent, from Thursday to 20,107.76.

The broader Topix index of all First Section issues on the Tokyo Stock Exchange, meanwhile, edged down 1.40 points, or 0.09 percent, to 1,608.98.

Food and marine transportation issues comprised those that declined the most by the morning break. Metal and machinery issues led those that gained.