US President Joe Biden said on Wednesday that the missile that hit Poland was unlikely to have been launched from Russia, saying Washington and its allies wanted to determine exactly what happened before deciding on a response, AFP reported.

“There is preliminary information that refutes this,” Biden told reporters when asked if the missile was launched from Russia. “Based on the ballistic trajectory, it’s unlikely that it was launched from Russia, but we’ll see,” Biden added after the emergency. meeting with other G7 leaders.

“I will make sure that we can determine what exactly happened,” the president also said.

Ukraine still retains stocks of former Soviet and Russian weapons, including the S-300 air defense missile system, writes the Times of Israel.

The blast in NATO member Poland immediately raised concerns that the alliance could be drawn into Russia’s nearly nine-month war against Ukraine, which is backed by the West.

Poland’s foreign ministry earlier summoned Russia’s ambassador to Warsaw for “immediate detailed explanations” of the attack, and Poland may request urgent consultations under Article 4 of the NATO Treaty.

Article 4 allows for consultations if any NATO member believes its “territorial integrity, political independence or security” is threatened.