World stock markets plunged further Tuesday as more gloomy evidence emerged of China's economic slowdown, triggering heavy sell offs from Hong Kong to New York and raising fears of weakening global growth. Wall Street fell sharply, with the Dow Jones closing down 468 points, or 2.8 per cent at 16,060. European markets also fell, with the UK's FTSE 100 closing down 3 per cent and France's Cac 40 and Germany's Dax about 2.4 per cent lower. Tokyo stocks tumbled almost four percent as China woes spread, with Europe's main markets following in its wake by closing down by up to three percent.Christine Lagarde, Head of the International Monetary Fund also added to the gloom Tuesday when she warned that global growth this year would be likely weaker than previously anticipated, less than two months after the IMF cut its global forecast for 2015 to 3.3 per cent.