Tokyo stocks down 1.06% by noon

Tokyo stocks fell 1.06 percent on Tuesday morning after Wall Street plunged following deadly explosions in Boston, and as a stronger yen weighed on exporters.

The Nikkei 225 index at the Tokyo Stock Exchange was down 140.16 points at 13,135.50 by the break, while the Topix index of all first-section issues was down 1.84 percent, or 20.83 points, at 1,113.16.