ISIS-K, the group linked to Moscow's terror attack, explained
ISIS claims responsibility for Moscow concert venue attack as part of ongoing threat by ISIS-K.
Khorasan
Moscow Terror Suspects Plotted Other Massacres in Europe
Several terrorist suspects linked to ISIS-K's mass shooting plot in Moscow have ties to past attacks in France.
ISIS-K, Group Tied to Moscow Attack, Has Grown Bolder and More Violent
ISIS-K militant group linked to terrorist attack in Moscow, aims to undermine Taliban authority in Afghanistan.