The pound plunged by 6% in a "flash crash" amid concerns about Brexit.

Unsettling stock markets in early Asian trading, Sterling fell past the 1.20 level early on Friday - its lowest point in more than three decades - before recovering minutes later and going on to trade at around 1.24 dollars.

Some market watchers attributed the fall to comments made by French president Francois Hollande, who insisted the European Union must take a tough stance in negotiating Brexit.

Other, meanwhile, suggested a "fat finger" trading mistake.

On Monday, the pound fell to a near 31-year low amid investor concerns following Theresa May's announcement at the weekend that Article 50 will be triggered by March 2017.