The explosion on Tuesday at a grain storage facility close to the Ukrainian border happened as Russia launched a barrage of missile attacks against Ukraine's energy infrastructure, which Kyiv claimed were the most intense in the conflict's nearly nine-month duration. The rocket landed near Przewodow, a village about 6 kilometers from the Ukrainian border, according to the Polish foreign ministry.

Despite concerns that the violence in Ukraine could spread to nearby nations, U.S. President Joe Biden stated on Wednesday (Nov. 16) that it was likely not Russia that fired the missile that killed two people in Poland.

An initial investigation found, according to U.S. officials, that Ukrainian forces fired the missile that struck Poland in response to an approaching Russian missile. The incident was a one-off, and Polish President Andrzej Duda had earlier told reporters that it was "most likely a Russian-made missile" but there was no proof of who shot it.

The two victims were men, according to a local who wished to remain unnamed, and they were in close proximity to a grain facility's weighing area. Russian defense officials denied firing any missiles at Poland, calling the accusations "a deliberate provocation aimed at escalating the situation". Dmitry Peskov, a spokesman for the Kremlin, stated that he was unaware of an incident in Poland.

Due to NATO countries' obligations to collective defense under Article 5 of the North Atlantic Treaty Organization (NATO), any Russian attack on Poland could increase the likelihood of a conflict between Russia and Ukraine. To discuss the incident, Biden called a meeting with numerous world leaders who were in Bali, Indonesia, for the G20 summit. Along with leaders from NATO members Germany, Canada, the Netherlands, Spain, Italy, France, and the United Kingdom, non-member Japan and EU delegates also attended.

When asked if it was too soon to say whether the missile was fired from Russia, Biden replied, "There is preliminary information that contests that. I don't want to say that until we completely investigate it, but it is unlikely in the lines of the trajectory that it was fired from Russia but we'll see." Before taking any action, the U.S. and NATO nations would conduct a thorough investigation, Biden promised. Later on Wednesday, a meeting of the NATO ambassadors is anticipated.

According to Polish officials in Warsaw, their government is likely to request a NATO meeting under Article 4 of the treaty for talks among the allies and to bring up the matter at the Wednesday UN Security Council meeting.