An Ohio man has been charged in the investigation into dozens of bomb threats made to courthouses and other public buildings in five states late last year.

The FBI arrested 39-year-old Lonny Bristow of Mansfield on Wednesday in the Mansfield area. He had an initial court appearance Thursday in Cleveland federal court and waived a bond hearing.

He was initially charged with a single count of making a bomb threat by phone.

The FBI says Bristow was arrested in the investigation of bomb threats made in November and December to courthouses and public buildings in Nebraska, Washington, Oregon, Tennessee and Mississippi.

There was no immediate indication of a possible motive.

The public defender appointed to represent him limited her comments to detailing the initial court proceeding and wouldn't comment further.