An indictment unsealed on Monday in Detroit said that members of a U. S. militia group were accused of planning to wage a war against the United States.

The Detroit News reported that the five-count indictment unsealed in U. S. District Court alleged that since August 2008 the defendants were trying to use bombs and other weapons to oppose the U. S. government.

WXYZ-TV, Detroit, reported that eight people were arrested in weekend raids and the FBI said Monday it has arrested a ninth suspect, identified as Josh Stone, son of the group's leader, David Stone, following a standoff in North Adams Village. The younger Stone had been a fugitive since the weekend raids.

The TV station further said that five people in a house where Josh Stone was arrested Monday were also taken into custody, but it was not clear whether they faced any charges.

The eight men and one woman named in the indictments are members of the Hutaree organization, described in the indictment as an "anti-government extremist organization." Each faces between three and five charges, including sedition, attempts to use weapons of mass destruction, teaching and/or demonstrating use of explosive materials and carrying weapons in relation to a crime of violence.

Officials further said that eight people were in custody. Federal officials conducted raids this weekend in Michigan, Ohio and Indiana.

Andrew Arena, FBI special agent in charge, said of the Lenawee County, Mich., militia group, "This is an example of radical and extremist fringe groups which can be found throughout our society. The FBI takes such extremist groups seriously, especially those who would target innocent citizens and the law enforcement officers who protect the citizens of the United States." (With Inputs from Agencies)