( 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 .
She is recuperating at a rehabilitation center in Houston . She was shot in the head outside an Indian restaurant in January . A judge has entered ` ` not guilty '' plea on behalf of the shooting victims . He also ordered a competency evaluation for Loughner .