US President Donald Trump has threatened to impose tariffs on an additional $200bn (£151bn) of Chinese goods in a growing trade row.

Mr Trump said the 10% tariffs would come into effect if China "refuses to change its practices".

The move would be a major escalation of the dispute, which threatens to take the US and China into a trade war.

Mr Trump insists that China has been unfairly benefitting from a trade imbalance with the US for years.

Last week, he announced the US would impose 25% tariffs on $50bn worth of Chinese goods.

Beijing responded by saying it would hit 659 US products worth $50bn - including agricultural products, cars and marine products - with a similar tax.

Mr Trump said that by retaliating, China was "threatening United States companies, workers, and farmers who have done nothing wrong".

Stock markets had already fallen on Monday amid fears of further deterioration of US-China trade relations

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