Equities tumble on Asian bourses

Key indexes decline as US threat to impose tariffs rattles global investors

China's A-share market, together with other Asian peers, tumbled on Friday, after the unexpected tariff threat from the United States overnight rattled investors globally.

The benchmark Shanghai Composite Index fell by 1.41 percent to close at 2867.84 points, while the smaller Shenzhen Component Index ended 1.42 percent lower at 9136.46 points.