Russia-Ukraine updates: US to ban Russian carriers from its airspace

Russia claimed on Friday afternoon that its forces have blocked Kyiv from the west, which would begin a partial encirclement of the Ukrainian capital.

According to a statement from the Russian Ministry of Defense, Russian forces also have completely blocked the northern Ukrainian city of Chernihiv, about 90 miles north of Kyiv, and now have full control of a key Ukrainian military airport in Hostomel, a town on the edge of the capital. Some 200 Russian helicopters were allegedly used in the attack on the airport.

While ABC News could not independently verify Russia's claims, the Ukrainian military has acknowledged that it does not have full control of the airport in Hostomel.

The Russian Ministry of Defense alleged that Russian forces are "doing everything possible to prevent civilian casualties" and "will not deliver any strikes on residential areas of Kyiv." However, fighting is already taking place in residential areas and Ukrainian authorities said homes have been bombed in and around Kyiv.

-ABC News' Anastasia Bagaeva and Patrick Reevell

Ukrainian President Volodymyr Zelenskyy called on Russian President Vladimir Putin to hold negotiations and cease the deadly attacks on his country.

"Fighting is ongoing all over Ukraine. Let's sit at the table for negotiations to stop people dying," Zelenskyy said in a televised address Friday afternoon.

But he did not order Ukrainian troops to stop defending their country, instead telling them: "Stand tough. You're everything we have. You're everything that is defending us."

Zelenskyy criticized Europe's response to the Russian invasion of Ukraine, calling it too slow and noting divisions. He also issued a dire warning to the rest of Europe.

"It's not just Russian invasion in Ukraine, it's the beginning of the war against all Europe, against its unity, all human rights, against all the rules of coexistence on the continent, against European countries' refusal to change the borders by force," he said.

-ABC News' Julia Drozd and Patrick Reevell

Russia will begin negotiations again once "democratic order" is restored in Ukraine, Russian Minister of Foreign Affairs Sergey Lavrov said Friday, amid an ongoing invasion of the neighboring country.

"We are ready for negotiations, at any moment, as soon as the Armed Forces of Ukraine respond to the call of our president to cease resistance and lay down their arms. No one intends to attack them," Lavrov said during a televised meeting in Moscow with pro-Russian separatist leaders from eastern Ukraine.

Lavrov's comments come as Russian forces attacked Ukrainian troops in Kyiv on Friday morning, as the fighting drew closer to the capital's city center.

-ABC News' Anastasia Bagaeva and Patrick Reevell

Russia claimed Friday that its forces have so far disabled 118 elements of Ukraine's military infrastructure.

"These include 11 military airfields and 13 command and communication posts of the Ukrainian Armed Forces," Russian Ministry of Defense spokesman Igor Konashenkov said in a statement.

Konashenkov also alleged that more than 150 Ukrainian soldiers have "laid down their arms and surrendered during the fighting."

-ABC News' Anastasia Bagaeva