Slovak and Hungarian police seized enriched uranium that could be used in a "dirty bomb" when they arrested three traffickers in a joint operation, officials said Thursday.

"According to preliminary information, the material could have been used to make a so-called dirty bomb," Slovak deputy police president Michal Kopcik told a news conference in Bratislava.

The traffickers wanted 1.6 million dollars for the 481.4 grammes of material, Kopcik said. It contained uranium-235, the type used in nuclear reactors and nuclear warheads, and the naturally occuring uranium-238.

So it begins... (again)