Initial findings suggest the missile that killed 2 people in Poland was fired by Ukrainian forces to intercept a Russian strike: US officials

• Initial findings suggest the missile that killed two Polish citizens was fired by Ukraine, per the AP.
• The AP cited three anonymous US officials who said the missile was fired to intercept a Russian one.
• Ukraine said Russia launched a salvo of 90 missiles at Ukraine on the same day of the Poland blast.

Three US officials said initial findings suggest the explosion that killed two Polish citizens on Tuesday was caused by a Ukrainian-fired missile intercepting a Russian one, the Associated Press reported.

Ukraine's forces fired the weapon as Russia launched a reported salvo of 90 missiles at Ukrainian infrastructure, the AP reported, citing the officials. The outlet did not name the three Americans.

The AP's report comes as President Joe Biden said it was "unlikely" the missile was fired from Russia, citing "preliminary information."

The Polish Ministry of Foreign Affairs confirmed on Wednesday that a "Russian-made missile" fell near the village of Przewodów. It summoned the Russian ambassador for an explanation, but did not directly accuse Russia of an attack.

As of Tuesday evening, Poland said it was considering invoking NATO's Article 4, which allows a member state to raise issues of territorial integrity, political independence, or national security.

Both Russian and Ukrainian forces have used Russian-made weapons and ammunition throughout the war in Ukraine.