Polish Prime Minister Mateusz Morawiecki said that, in his opinion, only the direct intervention of US President Joe Biden will lead to an agreement on the provision of artillery shells by South Korea to Ukraine.

 He said this in an interview with The New York Times.

 Sources of intelligence documents posted on social networks say that Poland may play a role in the transfer of artillery shells from South Korea to Ukraine. But the leaked documents indicated that South Korean officials were reluctant to provide the munitions, fearing it would violate their country's rules prohibiting the provision of lethal aid to countries at war.

 Polish Prime Minister Mateusz Morawiecki, who was in Washington this week for meetings with US and International Monetary Fund officials, said that using South Korea's artillery stockpile is crucial to Ukraine getting the ammunition it needs.

 The Russian military, Morawiecki said, has far more artillery shells and fires far more rounds on the battlefield every month than the Ukrainian army. He said South Korea has a large stockpile of artillery shells and could help.

 But a deal, he added, would require more direct involvement from Biden to reassure South Korea that the United States would offer support in the event of any aggressive response from China or Russia.

 "We talked with South Korea about this, about the supply of weapons and ammunition. But I don't think it will be possible without the intervention of the United States. South Korea is afraid of the reaction of Russia and China," Moravetskyi said.

 Morawiecki said that Poland will never hand over weapons without an agreement with South Korea. Poland has purchased many weapons systems from South Korea, but he said that buying missiles from Seoul specifically to send to Ukraine would require US intervention.

 American officials refused to comment on Morawiecki's statement.