Investigators confirmed that the remains found earlier this week are those belonging to the missing University of Virginia student Hannah Graham.

The cause of death has not been revealed and the investigation continues to determine how Graham perished.

Police announced on Friday that the remains found a week ago belong to Graham, according to ABC News. The remains were discovered on Oct. 18, some 10 miles from Charlottesville. In surveillance footage, Graham was last seen on Sept. 13 at around 1 a.m. with Jesse Matthew, who is now in custody.

"The focus of the investigation now is to determine what charges will be brought and the appropriate time to make those charges,"said prosecutor Denise Lunsford.

According to WDBJ7, Graham's parents released a statement expressing their grief over the news.

"We are devastated by the loss of our beautiful daughter, Hannah. Over recent weeks Hannah has been described by those who know her as bright, witty, thoughtful, loyal and fun to be around," they said. "She was all those things and more. Put simply, Hannah lit up our lives, the lives of our family and the lives of her friends and others who knew her."

The Graham's' statement continued: "... we would like to draw attention to the fact that, although the waiting has ended for us, there are other families both in Virginia and beyond who have not been as fortunate in that their loved ones are still missing. Please continue to hold these families in your thoughts and prayers."

Graham's remains were found around six miles from where 20-year-old Morgan Harrington's body was found after she disappeared in 2009. Harrington was a student at Virginia Tech. Police says forensic evidence links Harrington to Matthew.

President of the University of Virginia Teresa Sullivan released a statement on the college's website:

"Hannah showed great promise as a student and as a young woman. She brought immense energy and delight to her learning at the University, and she was a source of friendship and joy for so many people here at the University and abroad, particularly her friends on the ski team. Thomas Jefferson wanted students here to fulfill 'destinies of high promise.' For Hannah's young life to end so tragically, and for her destiny of promise to be left unfulfilled, is an affront to the sanctity of life and to the natural order of human events."