WASHINGTON -- The Bureau of Alcohol, Tobacco, Firearms and Explosives said Monday it has broken up a plot to assassinate Democratic presidential candidate Barack Obama and shoot or decapitate 102 black people in a Tennessee killing spree.

In court records unsealed Monday, agents said they disrupted plans to rob a gun store and target an unnamed but predominantly African-American high school by two neo-Nazi skinheads.

Jim Cavanaugh, special agent in charge of the Nashville ATF field office, said the two men planned to shoot 88 black people and decapitate another 14. The numbers 88 and 14 are symbolic in the white supremacist community.

The men also sought to go on a national killing spree, with Obama as its final target, Cavanaugh told The Associated Press.

It is not clear whether there have been any arrests or charges in the case.