Russia on Tuesday said the United States was seeking to place weapons in space, the latest accusation in an ongoing row, that came a day after Washington vetoed a Russian non-proliferation motion at the United Nations.

"They have once again demonstrated that their true priorities in the area of outer space are aimed not at keeping space free from weapons of any kind, but at placing weapons in space and turning it into an arena for military confrontation," Russia's foreign ministry spokeswoman Maria Zakharova said in a statement.