Japan's main stock index has closed at its highest level for nearly six years, tracking overnight gains on Wall Street and buoyed by a weak yen.The Nikkei 225 rose 1.8% to 15,727.12 points, the highest level since December 2007.
The index has surged nearly 50% this year after a series of aggressive moves by policymakers to help boost growth.
The measures have resulted in a fall in the yen's value, lifting exports and boosting profits of exporters.
The Japanese currency has dipped nearly 25% against the US dollar since the start of this year.
That makes Japanese goods more affordable for foreign buyers and boosts profits of exporters when they repatriate their foreign earnings back home.