Japanese shares fell for a second day as investors remained cautious ahead of a key Bank of Japan meeting later this week. Japan's Nikkei 225 index fell 0.5% to close at 17,353.28.
In China, the mainland benchmark Shanghai Composite edged 0.3% higher to 2,955.37 while Hong Kong's Hang Seng was 0.6% lower at 21,177.84.
In South Korea, the Kospi index finished the day up 0.3% at 2,019.63.
In Australia, traders were equally cautious, and the ASX/200 index fell 0.3% to 5,220.60.