Masked gunmen kill 13 Afghans in third bus attack in a month

Masked gunmen attacked a bus about an hour's drive from the Afghan capital Kabul and opened fire on all its passengers killing 13 people, local officials said. It is the third time unknown gunmen have targeted bus passengers over the past month. The Taliban insurgent group have denied any connection to the attacks, which some have blamed on militants who have sworn allegiance to the Islamic State.