A missile that killed two people in Poland was probably not fired from Russia, US President Joe Biden said on Wednesday after an emergency meeting of NATO leaders called to discuss what Poland called a strike by a Russia-made projectile, Reuters reported.The explosion on Tuesday at a grain facility near the Ukrainian border came as Russia unleashed a wave of missile attacks targeting Ukrainian energy infrastructure, raising concerns the conflict could spill into neighbouring countries.According to Reuters the Polish foreign ministry said the rocket fell on Przewodow, a village about 6 km (4 miles) from the border with Ukraine.

Russia denied it was responsible for the explosion but Polish officials said the missile was Russian-made.A resident who declined to be identified said the two victims were men who were near the weighing area of a grain facility.A Russian strike on Poland could risk widening the conflict between Russia and Ukraine as members of the North Atlantic Treaty Organization (NATO) are committed to collective defence under its Article 5, read the report.Biden convened a meeting of leaders gathered for the G20 meeting in Bali, Indonesia, to discuss the incident.

Leaders from NATO members Germany, Canada, Netherlands, Spain, Italy, France and Britain attended, as well as non-NATO member Japan and representatives from the European Union.Asked whether it was too early to say if the missile was fired from Russia, Biden said: &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.&The United States and NATO countries would fully investigate before acting, Biden said.The explosion in Poland came as Russia pounded cities across Ukraine with missiles, in attacks that Kyiv said were the heaviest wave of strikes in nearly nine months of war.

Some hit Lviv, which is less than 80 km (50 miles) from the border with Poland, Reuters reported.Ukrainian President Volodymyr Zelenskiy said Russian missiles hit Poland in a &significant escalation& of the conflict.

He did not provide evidence of Russia&s involvement.&All of Europe and the world must be fully protected from terrorist Russia,& he said in a tweet after a phone call with Polish President Andrzej Duda.Two European diplomats said Poland requested a NATO meeting under the treaty&s Article 4 for consultations among the allies.

Poland was also increasing the readiness of some military units, Polish Prime Minister Mateusz Morawiecki said.Polish officials sought to avoid inflaming the situation.

Morawiecki called on all Poles to remain calm, and President Duda said there was no concrete evidence showing who fired the missile and that it was a one-off incident, read the report.Biden told Duda in a call that Washington has an &ironclad commitment to NATO& and will support Poland&s investigation, the White House said.The Associated Press earlier cited a senior US intelligence official as saying the blast was due to Russian missiles having crossed into Poland.But in Washington, the Pentagon, White House and US State Department said they could not corroborate the report and were working with the Polish government to gather more information.

The State Department said the report was &incredibly concerning.&Germany and Canada said they were monitoring the situation, and the European Union, the Netherlands and Norway said they were seeking more details.

French President Emmanuel Macron ordered a verification effort, while Britain was &urgently& looking into the report.According to Reuters Russia&s defence ministry denied that Russian missiles hit Polish territory, describing such reports as &a deliberate provocation aimed at escalating the situation&.Kremlin spokesperson Dmitry Peskov said he had no information on an explosion in Poland.Latvian Deputy Prime Minister Artis Pabriks said the situation was &unacceptable& and it could lead to NATO providing more anti-aircraft defences to Poland and Ukraine.Lithuanian President Gitanas Nauseda said on Twitter: &Every inch of #NATO territory must be defended!&Ukrainian Defence Minister Oleksiy Reznikov said Kyiv had warned of the danger Russian missiles posed to neighbouring countries and called for a no-fly zone to be imposed, read the report.&We were asking to close the sky, because sky has no borders.

Not for uncontrolled missiles.

Not for the threat they carry for our EU - NATO neighbours.

Gloves are off.

Time to win,& he said in a Twitter post.The post Biden says missile that killed two in Poland may not have come from Russia first appeared on Ariana News.