Ukrainian President Volodymyr Zelensky has signed a decree formally ruling out the possibility of negotiations with his Russian counterpart Vladimir Putin.
The decree confirms "the impossibility of holding negotiations with the President of the Russian Federation Vladimir Putin," according the the Ukrainian Presidency’s website.
It is dated last Friday, the day that Putin announced he would illegally annex the four partially-occupied Ukrainian territories of Kherson, Zaporizhzhia and the Donetsk and Luhansk People's Republics.
The move came in response to Putin’s attempt at annexation, the post said.
"It takes two parties to negotiate," Kremlin spokesperson Dmitry Peskov said on Tuesday in response to Kyiv's decree.
He claimed that Russia had wanted to resolve matters "by peaceful diplomatic means" since before Moscow's attempt at a full-scale invasion in February.
"Now we will either wait for a change in the position of the current president, or we will wait for the future president of Ukraine, who will change his position in the interests of the Ukrainian people," Peskov added.
It comes as Russia's parliament formalizes the illegal annexation, in violation of international law. The move follows so-called referendums in the four Ukrainian regions held by Russian-backed leaders, which are illegal under international law and have been denounced by Ukraine and Western leaders as "sham."