Amanda Knox was ordered to stand trial again for the murder of her roommate by Italy's top criminal court on Tuesday, but there appeared to be little the country could do to force her to return for the new hearings.

The Court of Cassation, Italy's final court of appeal, overturned the acquittals of both Knox and her then-boyfriend Raffaele Sollecito over the 2007 killing of British student Meredith Kercher.

In a statement responding to the decision, Knox slammed prosecutors and vowed to fight on.

"It was painful to receive the news that the Italian Supreme Court decided to send my case back for revision when the prosecution's theory of my involvement in Meredith's murder has been repeatedly revealed to be completely unfounded and unfair,”said Knox, who is now aged 25 and living in the Seattle area.

“I believe that any questions as to my innocence must be examined by an objective investigation and a capable prosecution,” she added. “The prosecution responsible for the many discrepancies in their work must be made to answer for them, for Raffaele's sake, my sake, and most especially for the sake of Meredith's family. Our hearts go out to them.”

Theodore Simon, one of Amanda Knox's attorneys, discusses the Italian supreme court's stunning decision to overturn her acquittal saying "we fully expect she will be exonerated."

Knox said that she and her family would “face this continuing legal battle as we always have, confident in the truth and with our heads held high in the face of wrongful accusations and unreasonable adversity."

Kercher, 21, died from knife wounds in an apartment that she shared with Knox in Perugia, Italy.

Prosecutors argued that Knox and Sollecito killed her after a drug-fueled sexual assault in a case that drew worldwide attention.