LONDON (AP) — As if it wasn't shaky enough, the British pound endured one of its biggest falls ever on Friday — with some in the markets blaming trading robots or a fat-fingered typo for sending the currency down a precipitous 6 percent in just a couple of minutes.

For one of the world's major currencies, which is held as a reserve of value by countries around the world, that's a huge move, matched only by its fall in the wake of dramatic events like the June vote to leave the European Union.

Early Friday during Asian hours, the pound tumbled from $1.2600 to as low as $1.1789 in the space of two minutes, according to financial data provider FactSet. It later recovered somewhat to trade at $1.2365, but still that's a level the currency hasn't seen since 1985.

The crash occurred during a "twilight period" in the markets — after the close in the U.S. and just as Asian traders were starting their day. That means the volume of trading was likely lower than usual, and that relatively smaller trades can have an outsize impact.

Various reasons have been cited for the drama involving what is one of the world's oldest currencies. Some say a trader made a "fat finger" mistake typing in a market order. Others say it could have been an automated trading algorithm that makes decisions based on news websites or social media, or comments by France's president, Francois Hollande, who said Britain should pay for its decision to leave the EU.

Or some sort of combination of them all. The Bank of England is...read more at US News