Investors move to safe havens as US and North Korea trade threats

Gold rises to highest level in almost two months, while Swiss franc increases by more than 1% against US dollar

Growing tension between the US and North Korea boosted the Swiss franc, the Japanese yen, gold and government bonds as investors sought out traditional safe havens at a time of geopolitical uncertainty.

Nervous trading marked the 10th anniversary of the start of the financial crisis on Wednesday, after Donald Trump's warning that North Korea faced "fire and fury like the world has never seen" if it continued to make threats against the US.