China has warned the United States of "countermeasures" should the Trump administration proceed with the new 10% additional tariff on Chinese goods set to respond to the fentanyl flow into the US.

Trump reiterates his stance by pledging to hit the EU with tariffs, while stating that a 10 percent duty on Chinese imports could be implemented as soon as February 1.

Hundreds of American citizens have received in their mail boxes mysterious seed packs sent from China, the US Department of Agriculture says.

Experts warn that the two rivals are potentially heading into a new “cold war” that could prove damaging to the global economy.

US President Donald Trump on Sunday extended the China tariff deadline, citing "substantial progress" in trade talks.

BRICS leaders at G20 summit slam protectionism.

Global stock markets eased back on Thursday as concerns about trade wars nibbled at investor confidence and bond yields rose.