Gold fell below $1,200 for the first time since mid-February on Monday, as comments from Federal Reserve Chief Janet Yellen on the likelihood of higher U.S. interest rates sent the dollar to two-month highs.

The Fed should increase interest rates in the coming months if the economy picks up, Yellen said on Friday, bolstering the case for a rate hike in June or July. St. Louis Fed President James Bullard said on Monday global markets appeared to be "well-prepared" for a summer rate hike.