Russia's defence ministry said on Friday that the use of depleted uranium shells in Ukraine would harm Ukrainian troops, the wider population and negatively affect the country's agriculture sector for decades or even centuries.
Russia has reacted furiously to plans outlined by Britain earlier this week to send shells containing depleted uranium to Ukraine.
London says they are a conventional form of ammunition, but President Vladimir Putin said the move showed NATO members were sending weapons with a "nuclear component" to Kyiv.
