( CNN ) -- Doctors treating Arizona Rep. Gabrielle Giffords have scheduled a Friday morning news conference to provide an update on her progress . Giffords , who was shot in the head in an attack outside a Tucson , Arizona , supermarket on January 8 , has been recuperating at TIRR Memorial Hermann rehabilitation hospital in Houston . She was moved to the facility in late January from the University Medical Center in Tucson , Arizona . `` Two months after her injury , the congresswoman continues to improve , '' the Houston hospital said in a statement sent late Wednesday night . Six people were killed in the incident ; Giffords was among 13 injured . Authorities have said they believe Giffords was targeted . On Wednesday , a federal judge in Arizona entered `` not guilty '' pleas on behalf of Jared Lee Loughner , the 22-year-old Arizona man facing 49 counts -- including murder and attempted murder -- related to the shooting . Judge Larry Burns also scheduled a May 25 competency hearing for Loughner , and attorneys on both sides will be allowed to hire their own experts to evaluate Loughner 's competency to stand trial .
Giffords is recuperating at a rehabilitation hospital in Houston . She was shot by Jared Loughner on January 8, 2011, during an event with constituents outside of Tucson, Arizona. A judge has entered `` not guilty '' pleas on behalf of the shooting suspect . He also ordered a competency hearing for Loughner .