Scotland Yard chief Sir Bernard Hogan-Howe said about half of the estimated 500 British jihadists in Syria and Iraq are from London, and warned that the task of addressing the threat posed by their return to the UK should not be underestimated. UK jihadist Nasser Muthana, an Islamic State fighter, posted photos of IEDs he made in Syria on social media. British police are investigating the distribution of leaflets on London’s Oxford Street urging Muslims to pledge allegiance to the Islamic State.
