Gold posts the 4th straight weekly gain

Gold saw a sharp rise today on increased haven demand due to trade war escalation and pressures on US Fed in addition to dollar falling.

In a new criticism, US President Donald Trump said: "Who is Jerome Powell, the president of the central bank, or Xi Jinping, president of China?"

Trump renewed his attack on the Federal Reserve and China via his Twitter account, as he tweeted "who's our bigger enemy, Jerome Powell or President Xi Jinping?"

The Chinese government announced its plan to impose a 10% tariff increase on US imports worth $75 billion, amid expectations of targeting imports of agricultural goods.

And Trump ordered US companies to prepare for an alternative to China amid the escalation of the trade war.

Meanwhile, by 18:04 GMT, dollar index fell by 0.5% to 97.5 points, with a high of 98.4 points and a low of 97.5.

Gold futures (December delivery) jumped by 1.9% to $1,537.60 an ounce, to hit a weekly gain of 0.9%, with an intraday high of $1539.5 and a low of $1503.