Information on 17 justice campaigns for murder victims and those who died following police contact was held by a secret Scotland Yard unit, a report has found.
More top news
A US Twitter study has found that there are almost 50,000 active pro-Islamic State accounts, but say the number could be as high as 90,000.
In its first test, the 30-kilowatt military laser burned through a truck's engine in a matter of seconds.
Islamic State militants have begun to raze ancient ruins at the site of the Assyrian city of Nimrud.