A recent incident in which a missile fell in eastern Poland, killing two, increases the likelihood of a world war, a former president of Russia said on Wednesday.

Calling the incident a "Ukrainian missile strike," Dmitry Medvedev, who is currently the deputy head of the Russian Security Council, said on Twitter that the West increases the likelihood of a world war with its "hybrid war" against Russia.

On Tuesday evening, Polish authorities reported that a missile hit the village of Przewodow.

On Wednesday, US military officials said initial findings suggested it had been fired by Ukrainian forces at an incoming Russian missile.

US President Joe Biden echoed the statement, saying it was "unlikely" that the missile that killed two people in NATO-ally Poland was fired from Russia.

NATO on Wednesday summoned an extraordinary meeting to decide on further steps.

The Russian Defense Ministry said it did not launch strikes closer than 35 kilometers (about 22 miles) to the Polish border.

Polish President Andrzej Duda said there is a high probability that it was a missile of Ukrainian air defense.

Source: Anadolu Agency