Updated

Defense attorneys have filed an appeal in the case of an 84-year-old nun and two other activists convicted of breaking into and defacing a storage bunker holding bomb-grade uranium in a peace demonstration at a Tennessee weapons plant.

The Knoxville News Sentinel (http://bit.ly/1o9qL3g) reports the appeal filed Monday with the Sixth Circuit U.S. Court of Appeals in Cincinnati challenges their convictions on a sabotage charge.

The nun, Megan Rice, was sentenced in February along with activists Greg Boertje-Obed (bohr-CHEE' OH'-bed) and Michael Walli.

The three activists cut through three fences on July 28, 2012, and reached a storage bunker that holds the nation's primary supply of bomb-grade uranium. They painted messages, hung banners and threw blood on the bunker wall.

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Information from: Knoxville News Sentinel, http://www.knoxnews.com