GBP/USD slipped 0.13% to trade at a 31-year low of 1.2420.
The pound erased the sharp losses posted on Friday but remained under pressure amid sustained concerns over a ‘hard Brexit’ for Britain.
Analysts did not rule out the possibility of a “fat finger”, or human error, but most speculated that it could have caused by algorithms picking up on comments from French President François Hollande, who took a rough position on the Brexit, with the move exacerbated by thin trade.