Shares in Alibaba, the Chinese online retailer, have begun trading on the New York Stock Exchange.
Police are continuing to search the home of Arnis Zalkalns, who is wanted in connection with the disappearance of teenager Alice Gross in west London.
A dangerous flaw that has exposed eBay customers to malicious websites has been affecting the site since at least February, the BBC has found.
Images from around the world over the past seven days
The developer behind the new Bitcoin tech on the fears it will hide criminal activity.
A JetBlue airlines A-320 flying over California has been forced to make an emergency landing when an engine problem caused smoke to enter the aircraft's cabin.
A vote on the future of Northern Ireland's border is not necessary following Scotland's 'No' vote, says First Minister Peter Robinson.
NHS finances - what are pressures, deficits and challenges
News images from around the world: 19 September
Turkey allows thousands of Syrian Kurds fleeing Islamic State to cross its southern border, as the militants close in on a strategic Syrian town.
What will be the effect of handing tax control to the nations?
A 19-year-old man dies following a car crash in County Down on the main coast road between Newcastle and Annalong.
The 66-year-old actor - one of the original cast - will leave the show in Autumn 2015
Research suggests children born to mothers who have low thyroid hormone levels during pregnancy do worse at maths.
IBM and a UK college have created a social network to help staff get a better understanding of their pupils.
China fines UK pharmaceuticals firm GlaxoSmithKline $490m (£297m) for bribery and its former head of Chinese operations is given a suspended jail sentence.
The first person to buy the iPhone 6 in Perth, Australia, dropped his new gadget during an interview with a TV reporter.
Thousands of people have been forced to leave their homes in northern California after a wildfire burning out of control doubled in size in just 12 hours.
Six Iranians arrested for filming a video tribute to Pharrell Williams' song Happy are sentenced to 91 lashes and jail terms, their lawyer says.
The scientist who helped develop the CT scanner has been celebrated by the University of Nottingham 10 years after his death.