Donald Trump's latest threat to impose an additional 100% tariff on Chinese goods is "a typical example of US double standards", China's government has said, BBC reported.

A commerce ministry spokesperson also said China could introduce its own unspecified "countermeasures" if the US president carries out his threat, adding it was "not afraid" of a possible trade war.

On Friday, Trump hit back at Beijing's move to tighten its rules for rare earths exports, accusing it of "becoming very hostile" and trying to hold the world "captive". He also threatened to pull out of a meeting with China's President Xi Jinping later this month, according to BBC.

But on Sunday, Trump wrote: "Don't worry about China, it will all be fine!"