According to reports, militants killed four Afghan policemen and two civilians inside a police checkpoint by poisoning their yoghurt and launching an attack, officials say. The attack happened in the Nehre Siraj district of southern Helmand province, the local police chief told. 1

• 1. “Afghanistan; Militants kill police by poisoning food”, BBC, April 3, 2012 at http://www.bbc.co.uk/news/world-asia-17597797