A former US diplomat and now an analyst on East and South Asia, David Sedney, explains the role of the IS group in the Moscow attack and what we know about the suspects.
While Small in Number, Tajik Fighters an Asset for Islamic State-Khorasan voanews.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from voanews.com Daily Mail and Mail on Sunday newspapers.
The Iranian government has traced this month's twin suicide bombings in Kerman city to ethnic-Tajik fighters of the Islamic State Khorasan Province who, experts say, are "fairly small" in number but play "an important part" in the group's military activities. The Afghanistan-based branch of the Islamic State (IS-K) claimed responsibility for the January 3 blasts…