If confirmed, it would mark the first use of an ICBM in war, a weapon primarily designed for long-range nuclear strikes.During the briefing, Zakharova stood near the microphone, allowing a man's voice on the phone to be heard saying: "Masha, our strikes with ballistic missiles, which we did not talk about , are not commented on at all." Zakharova replied, "Yes, thank you."Zakharova stood near the microphone, so an unnamed man on the phone could be heard telling her: "Masha, our ballistic missile strikes, which we didn't talk about, we don't comment on at all."Zakharova replied: "Yes, thank you."A recording of the exchange has circulated online and through various media outlets.Zakharova later told Russia's state-owned TASS news agency that the call was to "clarify whether the Foreign Ministry could comment on the topic.