Moldova police thwart nuclear smuggling deals
7 October 2015 Last updated at 17:51 BST
Smugglers have attempted to sell nuclear material to extremist groups in the Middle East, according to police in Moldova working with FBI investigators.
They reportedly stopped gangs four times in the last five years, trading radioactive material.
The most recent case was in February when undercover agents were offered a large amount of radioactive caesium, the Associated Press reports.
Investigators say much of the material is believed to come from Russia.
Richard Galpin reports.