Asian stocks ended mixed on Tuesday as weak U.S. economic data and caution ahead of this week's key risk events weighed on sentiment.
The U.S. Institute for Supply Management's non-manufacturing index came in at 53 in December, its lowest level in five months and below estimates for a 54.6 figure, leading the S&P 500 to book its third consecutive loss.
Investors are looking ahead to Wednesday's release of minutes from the Fed's recent policy meeting, policy decisions from the European Central Bank and Bank of England on Thursday, and finally, Friday's closely-watched December U.S. non-farm payrolls report.
Meanwhile, traders also reacted to news that the U.S. Senate approved Janet Yellen to become the next chair of the Federal Reserve, making her the first woman to head the U.S. central bank in its 100-year history.
(Read more: Street awaits confirmation of better job market)