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Russian Customs Seize Iran-Bound Radioactive Metal

heremetyevo airport, Moscow, Russia.

Russia's customs agency said Friday that it seized radioactive metal from the luggage of an Iranian passenger bound for Tehran.

Spokeswoman Kseniya Grebenkina told The Associated Press that the luggage had been seized some time ago, but could not specify when. The Iranian hasn't been detained, she said.

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.

Prosecutors have launched a probe into the incident, Grebenkina said.

The pieces contained Sodium-22, she said, a radioactive isotope of sodium that could be produced in a particle accelerator. Sodium-22 is a positron-emitting isotope that has medical uses, including in nuclear medicine imaging.

Sergei Novikov, spokesman for the Rosatom nuclear agency, told the AP that the pieces are highly unlikely to have come from Rosatom and said the isotope is produced by particle accelerators, not by nuclear reactors.

In Russia, universities, research institutes and big medical centers can have the technology to produce it, he said.

"There is an extremely slim chance that it could have come from Rosatom," he said.

Novikov said that Rosatom has never sold Sodium-22 to Iran, but it has supplied it with other types of medical isotopes.