Gold prices were flat on Monday, after falling more than 3% in the previous session following U.S. Federal Reserve Chair Kevin Warsh's speech that signalled interest rate hikes may be needed.FUNDAMENTALSSpot gold held its ‌ground at $4,455.29 ⁠per ⁠ounce by 0011 GMT after hitting its lowest level since August 19 ​earlier in the session.U.S. gold futures for December delivery fell 0.6% to $4,504.90.The ​U.S. central bank will "have work to do" if policymakers don't get the confidence they need that inflation is heading down to ​2%, Fed Chair Warsh said on ⁠Friday, coming closer ‌than he has to acknowledging interest ​rate hikes ​may be needed to ease price pressures.Markets ⁠currently see a 57% chance of a rate ​hike at Fed's next policy meeting in September, ​compared with 36% prior to Warsh's comments, according to the CME FedWatch tool.Higher interest rates often weigh on gold prices since holding a non-yielding asset becomes less attractive.A series of U.S. labour market reports is due ‌this week, including job openings, the ADP employment report, weekly jobless claims and nonfarm payrolls data.Iran ​condemned the ​United States' new ⁠economic sanctions on Friday as "state terrorism" while its supreme leader said he was banning acts that could harm "social cohesion" amid concern that ​more financial pain could spark unrest at home.Among other metals, spot silver was flat at $66.34 per ounce, platinum edged 0.1% higher at $1,822.46, while palladium gained 0.2% to $1,424.89.DATA/EVENTS (GMT)0130 China NBS Manufacturing PMI August1200 Germany CPI, HICP Prelim YY August