The southern Ukraine city of Mariupol is “almost wiped out,” but a top adviser to President Volodymyr Zelenskyy denied Sunday that Russia controls the beleaguered city.

Igor Zhovkva told NBC News’ “Meet the Press” that weapons delivered by the U.S. and its allies so far have been what the country needs to fight Russia, but it now also needs weapons to defend its skies. Noting NATO has declined to imposed a “no-fly” zone over the country, Zhovkva said Ukraine needs anti-missile systems and anti-aircraft systems “because daily and nightly Ukraine cities are bombarded by the cruise missiles.”

Zhovkva denied the Russian claim that it controls the entire city, now believed to be home to about 100,000 remaining civilians. But he said the Russians control part of it.

“Ukrainian armed forces are still in town,” he said. “They are concentrated now mainly on the Azovstal steel plant. And they are concentrated there together with the civilians. And many of the Ukrainian soldiers are wounded.”

He criticized the U.N. secretary general’s request to speak with Russian President Vladimir Putin in Moscow, saying he was not authorized to speak on behalf of the Ukrainian government

“This is not a good idea to travel to Moscow. We do not understand his intention to travel to Moscow and to talk to President Putin.”

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Latest developments:

►Top officials from the Biden administration are set to meet with Ukrainian President Volodymyr Zelenskyy on Sunday in the highest-ranking visit to Ukraine by a U.S. delegation since Russia began its invasion.