Pound pummels FTSE, results roil mid caps

LONDON/MILAN (Reuters) - Britain's top share index succumbed to gains in the pound on Tuesday after U.S. President Donald Trump fired Secretary of State Rex Tillerson, while disappointing earnings updates weighed on mid caps.The FTSEended down 1.1 percent at 7,138.78 points, while the mid cap indexfell 1.3 percent.Trump replaced Tillerson with loyalist CIA Director Mike Pompeo which, together with U.S. inflation data, weighed on the dollar.