Tokyo stocks slumped more than three percent Wednesday, extending a drop on global markets as a stronger yen hit exporters and falling oil prices reignited worries about the world economy.

The benchmark Nikkei 225 index at the Tokyo Stock Exchange tumbled 3.15 percent, or 559.43 points, to 17,191.25, while the Topix index of all first-section shares also dived 3.15 percent, or 45.77 points, to 1,406.27.