"Stock markets across the Middle East saw more than £27bn wiped off their value as the lifting of economic sanctions against Iran threatened to unleash a fresh wave of oil onto global markets that are already drowning in excess supply.
All seven stock markets in the Gulf states tumbled as panic gripped traders. London shares are now braced for a second wave of crisis to hit when they open on Monday morning after contagion from China sent the FTSE 100 to its worst start in history last week.
Dubai's DFM General Index closed down 4.65pc to 2,684.9, while Saudi Arabia's Tadawul All Share Index, the largest Arab market, collapsed by 7pc intraday, before recovering to end down 5.44pc at 5,520.41, its lowest level in almost five years."