President Vladimir Putin said on Thursday that Russia would produce missiles that were banned under a landmark Cold-War era nuclear pact that ended last month, but that Moscow would not deploy them unless the United States did so first.

Speaking at an economic forum in Russia's Far East, Putin said Moscow had urged the United States to de-escalate a spiraling arms race between the former Cold War foes, but that Washington had not responded.

The Russian leader said he was concerned by U.S. talk of deploying missiles in Japan and South Korea, a deployment he said would cover parts of Russian territory.