World stock markets retreat from recent record peaks on Monday due to uncertainty over a U.S. tax reform agreement between U.S. Senate Republicans and the House of Representatives.
MSCI’s world equity index lost 0.2 percent, sliding from record highs scaled last week.
Japan's benchmark Nikkei slumped 1.3 percent, while MSCI's Asia-Pacific Index dipped 0.6 percent.
The STOXX 600 was down 0.4 percent.
France's CAC 40 tumbled 1.1% as selloff in European shares continues.
UK’s FTSE rose 0.3 percent in early trading.