Shanghai: China stocks plunged more than 6 percent on Tuesday after yet another late bout of panic selling triggered by a resumed slide in global equity markets and oil prices.

The CSI300 index .CSI300 of the largest listed companies in Shanghai and Shenzhen fell 6.0 percent to 2,940.51 points, while the Shanghai Composite Index .SSEC lost 6.4 percent, to 2,749.79.

By midday, both indexes had been down around 2 percent.