A Chinese investor monitors stock prices at  a brokerage house in Beijing, Monday, Aug. 24, 2015. Stocks tumbled across Asia on Monday as investors shaken by the sell-off last week on Wall Street unloaded shares in practically every sector. (AP Photo/Mark Schiefelbein)

Global market plunge intensifies on fears over China

World stock markets plunged and Wall Street was due to suffer heavy losses on Monday after China’s main index sank 8.5 percent amid fears over the health of the world’s second-largest economy.