Fears that Britain looks set to leave the European Union has sent jitters through the financial Markets.
Asian and European shares fell sharply and the pound hit an eight-week low.
The latest opinion polls show the ‘Leave’ camp with a ten point lead.
The potential economic difficulties surrounding Brexit have been mostly a background issue.
However, Monday saw the Asian markets post the biggest drop in four months.
The pound has been sliding against other major currencies as worries about a possible Brexit take hold.
Sterling hit a two-month low against the US dollar in early trading.
Analysts believe a possible Brexit is adding to global economic insecurity on top of weak job figures announced last week.