TOKYO, June 23 (Reuters) - Japan's Nikkei stock average fell 2.8 percent on Tuesday as investors moved to unload riskier assets after they were rattled by falls in overseas markets and worry about the global economy.
Mitsubishi Corp and other resource-linked shares took a battering as oil fell below $67 and copper extended losses on fears about slowing demand, while exporters fell as the yen advanced against the dollar.
The benchmark Nikkei fell 276.66 points to 9,549.61, at one point slipping as far as 9,511.45, its lowest since early June and a drop of over 3 percent.
The broader Topix fell 2.3 percent to 901.69.
(Reporting by Elaine Lies)