Most Asian stock closed higher as China's central bank started to boost liquidity. The People's Bank of China yesterday started to inject 500 billion yuan ($81.4 billion) into the country's five biggest lenders (100 billion yuan each).

Market participants are awaiting the results of the Fed' policy meeting. They expect the Fed will cut its asset purchase program by another $10 billion.

Market participants also speculate the Fed will start to hike its interest rate sooner than expected.

Indexes on the close:

Nikkei 225 15,888.67 -22.86 -0.14%

Hang Seng 24,376.41 +240.40 +1.00%

Shanghai Composite 2,307.89 +11.34 +0.49%