ST. PAUL (AP) — An FBI agent has testified that a witness said a western Minnesota man was involved in an alleged plot to bomb the Montevideo police station.

FBI special agent Shane Ball testified Tuesday the witness said 24-year-old Buford "Bucky" Rogers also was planning to attack a communications tower and a National Guard armory.

Rogers was arrested May 3 in what the FBI called "a terror plot." However, three weeks later a federal grand jury did not indict Rogers on terrorism charges.

Rogers' federal defender did not immediately return a phone message for comment Tuesday. But Rogers' father, Jeffrey, said the witness was "lying through his teeth."

A U.S. magistrate also ordered the unsealing of six documents in the case at the request of the Star Tribune.