Russia has denied reports that two Russian missiles exploded in NATO member Poland, which killed two people.
It claimed the reports were just "deliberate provocation to escalate the situation".
The Russian Defence Ministry came out strongly against reports this evening that two Russian missiles landed in the eastern Polish town of Przewodow, and killed two people.
The ministry said: "Statements by the Polish media and officials about the alleged fall of 'Russian' missiles in the area of the settlement of Przewodow is a deliberate provocation in order to escalate the situation.
"No strikes were made against targets near the Ukrainian-Polish state border by Russian means of destruction."
In the past Russia has spoken out aggressively about Poland's role in getting supplies from NATO countries to Ukraine.
Some military experts have warned the strike, if purposeful, could be a "test" of the west by Russian forces.
The claims come after a senior US intelligence officer confirmed the incident that took place this afternoon.
The missiles landed at the Polish town, at a grain silo, taking two lives and it is not yet known if it was a deliberate strike of an accidental impact.
The incident could have massive ramifications for the war in Ukraine and the west because Poland is a NATO member, meaning it could invoke article 5 which states an attack on one member state is treated as an attack on them all.
Already, a number of countries have come out against Russia after the missile strike killed two.
In Poland, the country's prime minister Mateusz Morawiecki, convened the Committee of the Council of Ministers for National Security and Defence Affairs "as a matter of urgency", government spokesman Piotr Müller confirmed.
Müller said the meeting was being held due to a 'crisis situation' and started at 8pm GMT this evening.
The missile struck in a village north of the Ukrainian city of Lviv, which has regularly been targeted by Russian strikes.
Polish authorities and the army raced to the area and set up a cordon around the aftermath of the impact site.
Armed forces are reportedly on 'high alert' and military planes were said to be scrambled in response and were in the air in the region.
Images emerging from the aftermath of the strike show destroyed farm equipment and a large crater in the ground where the missiles exploded.
Locals reportedly heard two explosions when the missiles fell and the Foreign Office confirmed it was 'urgently' investigating.
A spokesperson said: "We are aware of these reports and are urgently seeking clarity."
The Pentagon took a firm line on the incident but refused to confirm the incident and repeated previous promises of President Joe Biden and Pentagon press secretary Brigadier General Pat Ryder reportedly said: "When it comes to our security commitments and Article 5, we have been crystal clear: we will defend every inch of NATO territory."
Latvia's Minister of Defence, Artis Pabriks, tweeted: "My condolences to our Polish brothers in arms. Criminal Russian regime fired missiles which target not only Ukrainian civilians but also landed on NATO territory in Poland.
"Latvia fully stands with Polish friends and condemns this crime."
The Estonian Foreign Ministry: "Latest news from Poland is most concerning. We are consulting closely with Poland and other Allies. Estonia is ready to defend every inch of NATO territory. We’re in full solidarity with our close ally Poland."
