FTSE 100 at lowest level since 2016 as Brexit progress boosts pound

The FTSE 100 is trading at levels not seen since December 2016 after a rally in the pound's value - a reaction to Brexit progress - added to a tough day for shares worldwide.The London market closed 1.7% or 121 points down at 7,042 - making it the worst performer among its major European rivals as tech stocks came in to sharp focus.Many big names in the sector were dragged lower as Facebook's value came under pressure amid a fake news storm facing the company related to a data mining firm's use