Poland would be willing to take under serious consideration any Ukrainian proposal concerning the interdiction of Russian rockets heading toward cities in Ukraine or crossing Polish territory, Polish Foreign Minister Radosław Sikorski said Friday following his speech at the American Enterprise Institute during the NATO summit.

Poland is a frontline state and there has probably been a violation of Polish airspace by Russian missiles, which sometimes occurs, he said. He explained that some of the missiles fired in the area around St. Petersburg crossed Belarusian airspace before entering Polish airspace, for some 40 seconds, before hitting targets in Ukraine.

The difficulty, as Sikorski put it, is that if Poland shoots them down when they enter Polish airspace, the resulting pieces could present a danger to Polish citizens and their property. Ukraine has suggested that Poland intercept the missiles over Ukrainian airspace when they are about to cross into Polish territory; however, according to Sikorski, such action would be self-defense, and Poland is thinking of doing so.

This week, Ukrainian President Volodymyr Zelensky came to Warsaw to sign a security cooperation pact with Poland, including plans for Poland's possible interception of Russian missiles. Sikorski said it is only an idea, being pondered—at least at this stage.

In an interview with Polish national radio, the Polish Defense Minister, Władysław Kosiniak-Kamysz, said that the decision would be taken jointly with NATO. He added that Poland would not allow itself to take one-way action, not agreed upon by NATO.

Though after a comment by the NATO Secretary-General on Ukrainian national TV, Jens Stoltenberg reduced the possibility by saying that NATO would never be a party to the conflict and would not support such a Polish idea.