Ukrainian President Volodymyr Zelenskyy, posting on X from Washington, slammed Russia's attacks on Ukraine overnight.

“This was a demonstrative and cynical Russian strike," Zelenskyy said. "They are aware that a meeting is taking place today in Washington that will address the end of the war. We will have a discussion with President Trump about key issues."

Zelenskyy highlighted that the talks will include the United Kingdom, France, Germany, Italy, Finland, the European Union and NATO.

"Everyone seeks dignified peace and true security. And at this very moment, the Russians are attacking Kharkiv, Zaporizhzhia, the Sumy region, and Odesa, destroying residential buildings and our civilian infrastructure. Russians are deliberately killing people, particularly children," Zelenskyy wrote.

Vice President JD Vance will be in Monday's bilateral meeting between President Donald Trump and Ukrainian President Zelenskyy, a source familiar confirmed to ABC News.

Vance was in that White House meeting that took place six months ago, where he berated Zelenskyy in the Oval Office, claiming he was not grateful for the aid and support the U.S. has provided to Ukraine.

-ABC News' Hannah Demissie

As he prepares for a meeting with U.S. President Donald Trump, Ukrainian President Volodymyr Zelenskyy lamented an overnight Russian attack that he described as "demonstrative and cynical."

The deadly Russian aerial strike hit a residential building in Ukraine, according to Zelenskyy and local officials.

"They are aware that a meeting is taking place today in Washington that will address the end of the war," Zelenskyy said of officials in Moscow.

He said the European and NATO officials who are scheduled to join Trump at the White House all seek "dignified peace and true security."

"Russians are deliberately killing people, particularly children," Zelenskyy said. "As of now, seven people have been killed as a result of the drone strike in Kharkiv, the youngest being a girl who is only a year and a half old, and dozens have been injured, including children."

President Donald Trump will host Ukrainian President Volodymyr Zelenskyy, along with NATO and European leaders, at the White House on Monday in the latest high-stakes meeting seeking a negotiated end to Russia's invasion of Ukraine.

European leaders -- including European Commission President Ursula von der Leyen, German Chancellor Friedrich Merz, NATO Secretary-General Mark Rutte and British Prime Minister Keir Starmer -- are expected to arrive at the White House at noon, according to the White House.

Trump is then scheduled to greet Zelenskyy at 1 p.m. outside the West Wing, after which they will hold a bilateral meeting.

The European leaders and Trump will then take a group photo, which is expected to be followed at 3 p.m. by multilateral meeting between Trump and the European leaders in the East Room.

The day of meetings follows Trump's Friday summit with Russian President Vladimir Putin in Alaska, where the pair had what Trump described as a "very productive" meeting, but after which they didn't announce a deal to end the war.

The meeting also arrives about six months after an explosive Oval Office meeting between Zelenskyy, Trump and Vice President JD Vance.

"He can come back when he is ready for peace," Trump said at the time.

Zelenskyy on Sunday said on social media that he had arrived in Washington, adding that those who will attend the White House meetings "all share a strong desire to end this war quickly and reliably."

"Russia must end this war, which it itself started," he added.

-ABC News' Kelsey Walsh and Kevin Shalvey