Gold hit four-week lows on Monday as the dollar held firm and the market waited for comments from a top Federal Reserve official on US monetary policy, but prices were supported by the start of talks on the terms of Britain’s departure from the European Union. Spot gold was down 0.2% at $1 251 an ounce by 0852 GMT, up from an earlier $1 248.63, its lowest since May 24. US gold futures fell 0.3% to $1 252.5.