The Islamic State group claimed responsibility on Thursday for an attack on a police post in southern Russia.
A statement on an IS-affiliated website claimed two officers were killed and did not mention attacker casualties.
Russian officials say one police officer was killed and three were injured when two men attacked a police post in Magas, the capital of the Republic of Ingushetia, on Tuesday.
News reports said the attackers hit one police officer with their car and stabbed three others.