TOKYO, Feb. 6 (Xinhua) -- Tokyo stocks closed sharply lower Tuesday with the benchmark Nikkei stock index plunging 4.73 percent in panic selling after the Dow Jones Industrial Average logged its biggest-ever daily point loss and U.S. 10-year Treasury yields spiked overnight.

The 225-issue Nikkei Stock Average dropped 1,071.84 points, or 4.73 percent, from Monday to close the day at 21,610.24.

The broader Topix index of all First Section issues on the Tokyo Stock Exchange, meanwhile, lost 80.33 points, or 4.40 percent, to finish at 1,743.41.

All industry categories on the main section retreated, with metal product, nonferrous metal, and rubber product-linked issues comprising those that declined the most by the close of play.