The dollar jumped to three - month highs on Monday, extending its recent run of gains as expectations of a U. S. rate rise gathered pace, while gold prices plunged to their lowest in more than five years. The greenback posted its best weekly performance in about two months last week, after Federal Reserve Chair Janet Yellen reiterated that U.S. interest rates will probably rise later in the year. Data on Friday showing a robust pick up in U.S. consumer prices and housing starts also helped the rally, Reuters reported. The strength of the dollar weighed on gold, which plunged as much as 4 percent, while platinum fell as much as 5 percent to its lowest since February 2009. The dollar hit its highest since April 23 against a basket of major currencies .DXY before pulling back slightly to trade flat on the day. The euro hits its lowest since late April but last traded up 0.2 percent at $1.0853. This is while crude oil prices edged higher after posting their third consecutive weekly loss last week on expectations of increased o exports from Iran following a deal to ease sanctions on Tehran. Brent crude LCOc1 was last up 10 cents a barrel at $57.20.