Hong Kong stocks plunged on Friday, tracking a collapse across world markets, after Britain voted to leave the European Union, fuelling fears of a global rout.

The Hang Seng Index dived 2.92 percent, or 609.21 points, to close at 20,259.13.

And the benchmark Shanghai Composite Index fell 1.30 percent, or 37.67 points, to 2854.29 while the Shenzhen Composite Index, which tracks stocks on China's second exchange, lost 0.76 percent, or 14.61 points, to 1900.60.