The dollar fell to a record low against the euro today and a six-week low against the yen amid worries about the US sub-prime mortgage sector.
The euro stood at $1.3830 this morning, hovering near a record high of $1.3846 struck earlier.
The yen seesawed, sliding broadly in early Asian trading and hitting record lows against the euro in a move that traders attributed to speculative buying of sterling against the yen.
But the Japanese currency later rebounded to hit a six-week peak against the dollar of 120.80 yen on electronic trading platform EBS, the yen's highest level since early June.
The yen extended its gains after rallying on Friday, when a fall in US equities dampened investors' appetite for risk and prompted them to unwind some bets against the low-yielding currency.
