By Patrick Jackson
BBC News, London
Nato Secretary General Jens Stoltenberg has told the BBC that a rocket which killed 2 radical successful Poland connected Tuesday was astir apt Ukrainian.
"Most apt this is simply a Ukrainian aerial defence missile," helium said arsenic investigations continued into the blast adjacent the Ukrainian border.
But helium stressed that Russia was yet to blasted due to the fact that of its ongoing penetration of Ukraine.
Ukraine itself continues to accidental that Russia really fired the missile.
"I person nary uncertainty that this is not our missile," President Volodymyr Zelensky said successful televised remarks. "I judge that this was a Russian missile, based connected our subject reports."
He said it was imperative for Ukraine to beryllium allowed to articulation the probe into the blast connected the workplace successful Przewodow, 6km (4 miles) from the border.
Ukrainian aerial defence systems were activated connected Tuesday erstwhile Russia launched what is believed to beryllium its biggest question of rocket strikes successful the 9 months since the penetration connected 24 February.
Dozens of Russian missiles targeted the state but Ukraine says it managed to sprout astir of them down.
The wide attack, which occurred during the G20 acme successful Indonesia, caused an planetary outcry, portion quality of a rocket blast wrong Nato subordinate Poland's territory raised fears that the warfare mightiness beryllium escalating dangerously.
Mr Stoltenberg said Nato had pledged successful effect to proviso a "more precocious aerial defence system" to Ukraine which is not a subordinate of the confederation but receives extended subject aid.
"Today I attended a gathering of a enactment radical for Ukraine wherever Nato allies and partners made caller pledges for much precocious aerial defence systems truthful we tin assistance to sprout down Russian missiles," the Nato main said.
"But the champion mode to forestall immoderate instances similar this successful the aboriginal is for Russia to halt war."
"We person nary denotation that this is simply a deliberate onslaught from Russia," helium said, speaking from Nato's office successful Brussels..
He added, however, that determination was "no uncertainty that Russia is liable due to the fact that this would not person happened if Russia had not launched a barrage of rocket attacks against Ukrainian cities yesterday, arsenic they person done galore times earlier during this war".
Polish President Andrzej Dud said earlier that though a Russian-made S-300 rocket was astir apt to blame, there was nary grounds it had been fired by the Russian side.
When asked astir the anticipation of bid negotiations betwixt Moscow and Kyiv, Mr Stoltenberg said erstwhile attempts had shown that Russia's President Vladimir Putin had "no willingness to compromise and negotiate".
"We person to recognize if Putin and Russia halt warring we volition person bid but if Zelensky and Ukraine halt fighting, past Ukraine volition cease to beryllium arsenic an autarkic sovereign nation," helium said.
The apical US wide besides commented connected the warfare connected Wednesday, saying determination mightiness beryllium a "political solution where, politically, the Russians withdraw" from Ukraine.
But Army Gen Mark Milley, president of the Joint Chiefs of Staff, warned that an aboriginal subject triumph for Ukraine was improbable contempt its caller successes connected the battlefield.
"The probability of a Ukrainian subject triumph - defined arsenic kicking the Russians retired of each of Ukraine to see what they assertion arsenic Crimea - the probability of that happening immoderate clip soon is not high, militarily," helium told reporters astatine the Pentagon.