(ANSA-AFP) - KYIV, JUL 22 - Kyiv said Friday Ukraine will only sign an agreement with Turkey and the UN to resume grain exports that were disrupted by Moscow's invasion, excluding any direct deals with Russia. "Ukraine does not sign any documents with Russia. We will sign an agreement with Turkey and the UN," presidential aide Mykhaylo Podolyak wrote on Twitter, adding that Russia would signing a separate "mirror" agreement. He vowed a Ukrainian "military response" to any "provocations" from Russia and said Moscow's ships and representatives would not be allowed in Ukrainian ports used for grain exports. According to Podolyak, any necessary inspections of cargo ships "will be carried out by joint groups" in Turkish waters. A delegation from Ukraine was in Istanbul Friday with a deal set to be signed to unblock millions of tonnes of grain stuck in Ukrainian ports since Russia invaded on February 24. (ANSA-AFP).