Sterling has fallen versus the dollar today (August 20th), amid concerns from investors about a stuttering global recovery.
Reuters reports refuge was being sought in safe-haven currencies such as the yen and the Swiss Franc.
The news source states by 09:03 BST sterling was down 0.3 per cent in comparison to the previous day, meaning it was at $1.5551 in Forex trading, while support was still seen around the 200-day moving average at $1.5483.
Earlier this week the pound recovered from three-week lows against the dollar after the Bank of England minutes ended speculation of a further monetary easing.
However, experts believe the pound may be set for a further decline.
Paul Robson, currency strategist at RBS, said: "If the worries that the US economy will fall over and concerns about a global slowdown gather ground, it will be pretty negative for the UK and the pound."
Earlier this week surprisingly strong UK retail sales data boosted the pound against the greenback.