He said the US trusted the Polish government's investigation.

“I think you heard from us that we have not yet seen anything that would contradict the preliminary assessment of President Duda, that this was most likely a consequence of the fact that a Ukrainian air defense missile, unfortunately, fell in Poland,” TASS quotes him.

The US will continue to "assess and share new information," he added.

The Secretary of State also emphasized that in Ukraine, Poland, the United States, as well as the countries of NATO and the G7, there is an "obligation to follow the facts."

So he commented on the words of Ukrainian President Volodymyr Zelensky that the rocket was allegedly not Ukrainian.

On November 16, Polish President Andrzej Duda noted the high probability that the rocket that fell on the territory of the country belonged to the Ukrainian air defense forces.