Asian stocks fall as Japan's shares hit 4-week low

Asian shares slipped on Friday trading session with the gauge of Japan's stocks hitting the weakest level in four weeks amid concerns that lack of improvement about debt ceiling debate may cause in an unprecedented default of the U.S. economy. MSCI's broadest Asia-Pacific Index fell 0.1%, while South Korean's shares declined 0.1% despite a 0.5% gain of Samsung Electronics Co Ltd.