The pound fell to two month lows against the dollar on Monday and hit multi-year lows against the stronger yen as worries over a U.K. referendum on European Union membership next week took hold.

GBP/USD was down 0.49% at 1.4185, the weakest level since April 18.

Sterling has sold off in recent sessions amid fears that a U.K. exit or Brexit from the EU in the June 23 referendum could trigger a period of uncertainty in financial markets and hit growth in the region.

An opinion poll on Friday conducted by ORB International put support for a Brexit at 53%, against 47% for remaining.

The pound hit two-month lows against the euro, with EUR/GBP advancing 0.62% to 0.7941.

The safe-haven yen, which tends to be sought out by investors in times of market uncertainty, rose to multi-year highs against sterling and the euro.

GBP/JPY was down 0.39% at 150.5, the lowest level since mid-August 2013 after ending Friday’s session down 0.95%.


The U.S. dollar index, which measures the greenback’s strength against a trade-weighted basket of six major currencies, dipped 0.08% to 94.56.