Gold futures fell 3.1% to $4,189 a troy ounce in afternoon European trading, their lowest level in more than seven weeks. The decline came as a diplomatic impasse over the Iran war kept energy costs elevated, adding to inflation pressures and strengthening expectations that the Federal Reserve will raise interest rates again next month. Silver futures dropped 4.7% to $61.78 an ounce, while platinum fell 2.6% to $1,731. Earlier Cointelegraph coverage dated September 28 had reported a 3.2% decline below $4,150 and said the specific cause was unknown.