TOKYO, Jan. 30 (Xinhua) -- Tokyo stocks extended losses Tuesday morning following a drop in U.S shares overnight, with issues here linked to Apple Inc. under pressure on reports the firm will slash production targets of its iPhone X.

The 225-issue Nikkei Stock Average lost 152.08 points, or 0.64 percent, from Monday to 23,477.26.

The broader Topix index of all First Section issues on the Tokyo Stock Exchange, meanwhile, dropped 10.22 points, or 0.54 percent, to 1,870.23.

Mining, securities and electric appliance-linked issues comprised those that retreated the most by the morning break.