A federal grand jury has indicted a Faribault woman for allegedly making bomb threats against 16 post offices in southern Minnesota.

Thirty-eight-year-old Christina Anne Reineke faces three counts of mailing threatening communications to the post offices and to the Faribault Daily News in February and March.

Charging documents allege she sent handwritten letters saying the bombs would kill postal employees and customers. The letter to the newspaper threatened the newspaper’s office and the reporter who wrote the story.

Reineke was indicted Tuesday and is in custody.

The threatened post offices are in Mankato, North Mankato, Lake Crystal, Madelia, New Ulm, Sleepy Eye, Le Center, St. James, Northfield, Dundas, Faribault, Warsaw, Kenyon, Medford, Morristown and Owatonna.

Reineke was convicted in May 2007 of mailing threatening letters to state Rep. Jeanne Poppe, DFL-Austin, Sen. Dan Sparks, DFL-Austin, and Austin Mayor Tom Stiehm. She had been living at a boarding house in Austin at the time.

She was sentenced to 27 months in prison. She was released last November and was under intensive supervised release.

According to state court records, Reineke has been convicted several times since 1992 of theft, fraud and check forgery in Blue Earth, Hennepin, Mower, Rice and Nicollet counties, as well as terroristic threats in Wabasha County.

During an interview with the Austin Daily Herald in 2007, Reineke claimed she suffers from borderline personality disorder, post-traumatic stress disorder and major depression.