Briton Arrested After Turkey Hostage Killing

A British national has reportedly been arrested in Turkey during a crackdown on a banned left-wing group, members of which took a prosecutor hostage at an Istanbul court. Mehmet Selim Kiraz and the hostage-takers from DHKP-C - which is listed as a terrorist group by the US, EU and Turkey - were killed when police moved in to end the siege. The arrest came as a Turkish prosecutor ordered internet providers to block social media sites, including Twitter, Facebook and YouTube.