The Federal Customs Service said in a statement that its agents found 18 pieces of metal at Moscow's Sheremetyevo airport after a radiation alert went on. It says the gauges showed that radiation levels were 20 times higher than normal.
Experts say the Stuxnet virus has penetrated Iran's Bushehr nuclear plant and may cause a serious disaster if the plant becomes operational.
Israeli Prime Minister Benjamin Netanyahu won assurances Monday that Russia will will 'hold off' on supplying Iran with advanced S-300 air defense missiles, but it's still unlikely Russia will back sanctions against Iran, analysts say.
Ties may be fraying: Russia announced another delay in Bushehr, the Iran nuclear plant it is building, and has refused to fulfill a contract to supply advanced missiles.