An 85-year-old nun and two fellow Catholic peace activists in prison for vandalizing a uranium storage bunker should be released immediately, their attorneys say.

The 6th U.S. Circuit Court of Appeals last week overturned a sabotage conviction against Sister Megan Rice, Michael Walli and Greg Boertje-Obed for their July 2012 actions at the Y-12 National Security Complex in Oak Ridge, Tennessee. The court left in place a lesser charge.

In a Thursday motion, attorneys say resentencing will take weeks and the activists have already served more time than they are likely to receive. They have been in prison since May 2013.

The motion asks the court to either order their immediate release or send the matter to the lower court.

The motion says Rice suffers from health problems that are not grave, but are causing her pain.