The FBI says agents have conducted weekend raids in Michigan, Indiana and Ohio, and at least three people have been arrested.
Federal warrants are sealed, but FBI spokeswoman Sandra Berchtold said Sunday there has been "law enforcement activity" in two Michigan counties near the Ohio border.
FBI spokesman Scott Wilson in Cleveland says agents arrested two people Saturday in northwest Ohio. A third arrest was made in Illinois on Sunday, a day after raids in northwest Indiana.
WXYZ-TV in Detroit reports that one raid centered on a Michigan property where suspected members of a militia live.
The Michigan Militia says on its Web site that neither it nor the Southeast Michigan Volunteer Militia have been raided. An e-mail sent to the group Sunday wasn't immediately returned.
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