TOKYO, March 29 (Xinhua) -- Tokyo stocks advanced Thursday morning as a comparatively soft yen against the U.S. dollar supported exporters while the latest developments pertaining to the Korean Peninsula also brought market relief.

The 225-issue Nikkei Stock Average added 122.66 points, or 0.58 percent, from Wednesday to 21,153.97.

The broader Topix index of all First Section issues on the Tokyo Stock Exchange, meanwhile, gained 2.25 points, or 0.13 percent, at 1,701.81.

Service, rubber product and machinery-linked issues comprised those that gained the most by the morning break.