TOKYO, Feb. 1 (Xinhua) -- Tokyo stocks extended gains Thursday morning as the yen's retreat against the U.S. dollar lifted exporter issues, while bargain-hunting after the Nikkei's six-day losing streak buoyed the overall market.

The 225-issue Nikkei Stock Average gained 295.28 points, or 1.28 percent, from Wednesday to 23,393.57.

The broader Topix index of all First Section issues on the Tokyo Stock Exchange, meanwhile, added 25.52 points, or 1.39 percent, to 1,862.23.

Bank, oil and coal product and nonferrous metal-linked issues comprised those that gained the most by the morning break.