US shares inched higher on Friday, reversing some of the previous session's hefty falls as the volatile week on the markets continued.
The Dow Jones Industrial Average opened higher, but soon turned negative to be down 0.4 per cent at 23,739, while the broader S&P 500 index initially rose almost one per cent higher before falling back.
Both indices are set for their worst weekly losses in six years.
In London, the FTSE 100 index ended the day down 1.1 per cent at 7,092 points.
Other European markets also suffered, with Germany's Dax falling 1.4 per cent and France's Cac 40 shedding 1.25 per cent.