Iran said ISIS will next focus on Central Asia, but it still has sway in parts of the Caucasus, the Gulf, North and sub-Saharan Africa and Southeast Asia.
Six soldiers died and three were injured in the assault on a national guard compound.
The Chechen leader cast his ballot, then held a party, dressed as a medieval knight.
Shots and two explosions were reported in St Petersburg Wednesday morning.
The president of Ingushetia has labeled the incident "provocation".
Sources in law enforcement are blaming a suicide bomber, but those reports are unconfirmed.
The man was reportedly plotting attacks in Chechnya and Dagestan.
Magomed Daudov said his leader's dog hates "hypocrites" and its "teeth itch."
The Russian bombing campaign hit another 472 targets in just three days.