Armed men on a motorcycle killed Mohammed Isha, director of the Afghan Red Crescent in the southern province of Zabul, on Saturday. Eight suspects have been arrested in connection with the killing, security officials said on Sunday. It is the latest attack on civilians involved in reconstruction or relief in Afghanistan - five aid workers have died in the past three weeks. Humanitarian agencies fear the upsurge signals a new campaign of violence against them orchestrated by Islamic militants. Mr Isha was shot dead as he travelled home from work in Qalat, the provincial capital of Zabul. Armed assailants on motorbikes forced his vehicle to stop, then opened fire, according to officials. (BBC)