GBP/USD jumped to fresh highs above 1.4500 as the greenback weakened broadly following weaker-than-expected US nonfarm payrolls, which raises doubts about the strength of US economy ahead of the Fed June meeting. GBP/USD rose about 100 pips in a matter of minutes and peaked at 1.4522, before retreating slightly. It was last trading at 1.4493, recording a 0.44% gain on Friday. US economy added only 38,000 new jobs in May, the weakest performance since September 2010 and well below expectations of a 164,000 gain. The unemployment rate however, fell to 4.7% in May from 5.0% in April.