"They discussed Ukraine's ongoing counter-offensive, and President Biden reaffirmed unwavering U.S. support, including through continued security, economic, and humanitarian aid," the White House said in a statement.

Biden and Zelensky also discussed "recent events in Russia," it said.

Zelensky tweeted: "I spoke with 🇺🇸 President @POTUS. A positive and inspiring conversation."

He said: "We discussed the course of hostilities and the processes taking place in Russia. The world must put pressure on Russia until international order is restored."

"I thanked the @POTUSfor the unflagging support of 🇺🇦, especially for Patriots," he said.

He said: "I am grateful for the readiness of the 🇺🇸 and the American people to stand side by side with Ukraine until the full liberation of all our territories within internationally recognized borders."

(With UNI Inputs)