The Kremlin is demanding that Ukraine arrest its security chief and send him to Russia
Russia demands Ukraine arrest security chief blamed for Crimea explosion and accuses Ukraine of facilitating attacks.
Moscow
Russia demands extradition of Ukraine security service chief
Russia demands Ukraine hand over individuals linked to terrorist acts, including the head of Ukraine's SBU Security Service.
ISIS-K could slip through US border and carry out Moscow-style attack, US official warns
Warning issued about potential ISIS-K infiltration and attacks in US via porous borders, citing increased encounters with terror suspects.
9 detained in Tajikstan over Moscow concert hall shooting
Nine detained in Tajikistan for connections to deadly attack near Moscow; Islamic State claims responsibility.
Ukraine war briefing: Ukrainian power firm hit by Russian attacks warns repairs could take 18 months
Ukraine's largest private energy firm DTEK suffers significant damage and loss of generating capacity in conflict with Russia.
Why Islamic State attacked Russia. And why Russia blames Ukraine — Novaya Gazeta Europe
Analysis of Moscow concert venue terrorist attack suggests Russian President allowed it to boost support for war in Ukraine and suppress opposition, raising questions about Kremlin's response and implications for Putin's leadership.