Moscow: Russia's powerful Security Council Secretary Nikolai Petrushev visited Tehran on Wednesday and spoke with Iranian officials about security-related issues, according to TASS news agency.

According to TASS, Patrushev will hold regularly scheduled Russian-Iranian security consultations in Tehran with the participation of Security Council experts and representatives of ministries and agencies of the two countries.

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The visit comes amid ongoing allegations that Iran provided "kamikaze" drones to Russia to aid in Moscow's invasion of Ukraine.

Tehran acknowledged over the weekend that it had sent a "small number" of drones to Moscow, but claimed they were delivered before the conflict began.

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In a series of attacks over the past few weeks, Kyiv and the West claim that Russia used Iranian drones to target Ukraine's energy infrastructure.

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As a result of these attacks, Kyiv and other major cities in Ukraine had to implement rolling blackouts to retain power.