Sterling titled lower in American trade to near 2018 lows against the dollar, amid a lack of data from Britain and the US today.
As of 03:52 GMT, GBP/USD fell 0.33% to 1.3471 from the opening of 1.3516, with an intraday low at 1.3455, and a high at 1.3528.
Federal Reserve Bank of Cleveland President Loretta Mester spoke earlier today about monetary policy at the ECB macroprudential policy and research conference, in Frankfurt, where she noted the US economy is almost at full employment, with outlook being the best in a long time.
Mester said rate hikes are some of the tools used to counter potential risks to financial stability, asserting the importance of having fiscal policies that corroborate and enhance monetary ones.