China's benchmark Shanghai stock index closed down 5.33 percent on Monday, as investors continued to worry over the state of the world's second largest economy, dealers said.

The Shanghai Composite Index plunged 5.33 percent, or 169.71 points, to 3,016.70 on turnover of 286.4 billion yuan ($43.6 billion). The Shenzhen Composite Index, which tracks stocks on China's second exchange, tumbled 6.60 percent, or 130.62 points, to 1,848.10 on turnover of 377.8 billion yuan.