Investors ask whether falling Chinese housing starts could trigger end of commodity super-cycle.
Investment veteran Jim Rogers is banking on a collapse in the Chinese stock market, so he can snap up cheap shares in the region.
European markets have added to early losses as concerns over Chinese growth hit miners and a military coup in Mali sent Rangold Resources shares plummeting.
Asian markets snapped gains made over the past week as renewed fears of a slowdown in China's economy weighed on investors.
After a volatile start to 2012, equity markets have staged a prolonged rally in recent weeks.