KIEV, April 14 - Ukraine's SBU security service arrested a regional lawmaker and two companions for trying to sell radioactive plutonium for $10 million, The Associated Press reported Tuesday.

The service says the legislator and two businessmen from the western Ternopyl region were detained last week in possession of a suspected 3.7 kilograms (8.2 ponds) of plutonium-239, which can be used to make a so-called dirty bomb. Such a bomb spreads radioactive material over a wide area.