Russian Federation – Deputy Foreign Minister Grigory Karasin said in a radio interview on 13 July that the Ukrainian army is responsible for the shelling and that the incident could have "irreversible consequences".[1] The Ukrainian chargé d'affaires in Moscow was summoned by the Russian Foreign Ministry and handed a note of protest.[citation needed] Kommersant reported on 14 July via an unnamed source close to the Kremlin that Russia is considering airstrikes against targets in Ukraine as a response to the shelling of Russian territory.[2] "Our patience is not limitless," the source was quoted as saying, adding that Russia "knows exactly where they (Ukrainians) are firing from."[2] When asked about the Kommersant report, Dmitry Peskov, spokesman for President Vladimir Putin, said: "It's nonsense, there is nothing to comment on, it's not true."[14] Meanwhile, Deputy Speaker of the Federation Council Yevgeny Bushmin called for a military response: "We need to use precision weapons, like Israel's, to destroy those (the Ukrainians) who launched the bomb."[15] Ukraine – Spokesman for the National Security and Defense Council of Ukraine Andriy Lysenko dismissed Russia's claims as "total nonsense" and denied that Ukrainian forces were behind the shelling.[16] Lysenko suggested that the rebels could have been behind the attack in order to provoke Moscow to intervene on their behalf.[16] President Petro Poroshenko further accused Russia of sending its army across the border and attacking Ukrainian servicemen.[16] USA – State Department spokesperson Jen Psaki commented during a briefing held on 15 July on the incident. She said Russia failed to provide sufficient evidence confirming that Ukraine was indeed behind the July 13 cross-border mortar shelling.[17]