FTSE 100 suffers weakest week in six amid US-Iran talks, political uncertainty

UK shares declined on Friday, with the FTSE 100 and FTSE 250 indexes falling 0.4% and 0.6% respectively, sealing their steepest weekly losses since early May.

UK shares fell on Friday as U.S.-Iran tensions and political uncertainty dampened risk appetite, sealing a ‌weekly decline for both blue-chip and mid-cap indexes.

The FTSE 100 ended down 0.4%, at 10,363 points, losing 1% on the week, the steepest weekly loss since early May. The FTSE 250 midcap index fell 0.6%, down 0.5% for the week.