"NATO, as an alliance, does not have a position on the convention on cluster ammunition because a number of allies have signed the convention, but a number of allies have not signed the convention. It is for the individual allies to make decisions on the delivery of weapons and military supplies to Ukraine," Stoltenberg told reporters ahead of the Vilnius summit.
On Thursday, Russian Ambassador to the United Nations Vassily Nebenzia said that the United States supplying cluster munitions to Kiev would represent yet "another step" in escalating the conflict in Ukraine.
Earlier this year, Russian Deputy Foreign Minister Sergey Ryabkov urged the US against escalating tensions by providing Ukraine with cluster munitions.