Russia on Tuesday dismissed speculation that President Vladimir Putin could share a plane with President Donald Trump to attend a planned peace summit in Budapest, as Poland warned it could force down and detain the Russian leader if his aircraft entered its airspace.

Kremlin spokesman Dmitry Peskov rejected reports that Putin might travel to the Hungarian capital aboard the same aircraft as Trump, calling it "a fantastical version," according to Russia's state news agency TASS. The Kremlin faces a logistical problem as European Union airspace remains closed to Russian planes, complicating any route to Hungary, which is an EU member.

A direct flight from Moscow to Budapest would normally pass over Poland, a NATO member staunchly opposed to Russia's invasion of Ukraine. That has raised questions about whether Putin can safely reach the meeting, which has not yet been formally scheduled.

Polish Foreign Minister Radosław Sikorski said Tuesday that his country could be legally obligated to act if Putin's plane entered its airspace. "I cannot guarantee that an independent Polish court won't order the government to escort such an aircraft down to hand the suspect to the court in The Hague," Sikorski told Radio Rodzina, according to national media.

The International Criminal Court issued an arrest warrant for Putin in 2023, accusing him of illegally deporting Ukrainian children. Poland, an ICC member, is required to execute the warrant if Putin sets foot on its territory. Russia denies the allegations and does not recognize the court's jurisdiction.

Sikorski added that "if this summit is to take place, hopefully with the participation of the victim of the aggression, the aircraft will use a different route."

While most European governments remain firmly opposed to hosting Putin, Hungary's Prime Minister Viktor Orbán has maintained warmer relations with Moscow than other EU leaders. Budapest has said it would guarantee Putin's safe entry and return for the summit.

Bulgaria, another EU member, indicated it could allow Putin to use its airspace if it might help broker peace. "If the condition for this is to have a meeting, it is most logical for such a meeting to be mediated in every possible way," Bulgarian Foreign Minister Georg Georgiev told the Bulgarian News Agency BTA.

Trump announced last week that he intends to meet Putin in Budapest to discuss ending the war in Ukraine. The two leaders last spoke by phone on Thursday, agreeing to move forward with a face-to-face meeting following their earlier summit in Alaska in August.

U.S. Secretary of State Marco Rubio and Russian Foreign Minister Sergey Lavrov are working on preparations, though a preliminary meeting planned for this week was postponed.

After speaking with Ukrainian President Volodymyr Zelensky at the White House on Friday, Trump posted on Truth Social that "it is time to stop the killing, and make a DEAL! Enough blood has been shed, with property lines being defined by War and Guts." He added, "They should stop where they are. Let both claim Victory, let History decide! No more shooting, no more Death, no more vast and unsustainable sums of money spent."