Ukraine is willing to become neutral and compromise over the status of the eastern Donbass region as part of a peace deal, President Volodymyr Zelensky said on Sunday, even as another top Ukrainian official accused Russia of aiming to carve the country in two.

Zelensky took his message directly to Russian journalists in a video call that the Kremlin pre-emptively warned Russian media not to report, saying any agreement must be guaranteed by third parties and put to a referendum. read more

"Security guarantees and neutrality, non-nuclear status of our state. We are ready to go for it," he said, speaking in Russian.

But even as Turkey is set to host talks this week, Ukraine's head of military intelligence, Kyrylo Budanov, said Russian President Vladimir Putin was aiming to seize the eastern part of Ukraine.

"In fact, it is an attempt to create North and South Korea in Ukraine," he said, referring to the division of Korea after World War Two. Zelensky has urged the West to give Ukraine tanks, planes and missiles to help fend off Russian forces.

Turkish President Tayyip Erdogan told Russian counterpart Vladimir Putin in a telephone call on Sunday that a ceasefire and better humanitarian conditions were needed following Moscow's invasion of Ukraine, his office said in a statement.

"Erdogan noted the importance of a ceasefire between Russia and Ukraine, the implementation of peace and the improvement of humanitarian conditions in the region," his office said in a readout of the call.