Italian court explains Amanda Knox decision

Amanda Knox has said that she will take the case to Italy's Supreme Court to appeal a court decision to reinstate her conviction, for the murder of British student Meredith Kercher.

If the court confirms the conviction, a long extradition fight is expected for Knox, who is now living back in America.

Read more: Knox rejects court verdict saying 'I am innocent'

Ms Kercher, 21, was found dead in the flat she and Knox shared in the town of Perugia. Her throat had been slashed and she had been sexually assaulted.

A new document by an appeal court has stated evidence of a fallout between murdered British student Meredith Kercher and Amanda Knox.

The document said: "It is a matter of fact that at a certain point in the evening events accelerated; the English girl was attacked by Amanda Marie Knox, by Raffaele Sollecito, who was backing up his girlfriend, and by Rudy Hermann Guede, and constrained within her own room."

Rudy Guede was convicted in a separate trial of sexually assaulting and stabbing Kercher.

His 16-year sentence, reduced on appeal from 30 years, was upheld in 2010 by Italy's highest court, which said he had not acted alone.

An Italian court has explained why it has restored the guilty charge against Amanda Knox and her former Italian boyfriend Raffaele Sollecito, for the murder of British student Meredith Kercher.

Amanda Knox claims there is "no logic" to an Italian court's decision to reinstate her conviction, saying in a statement "I am innocent."

The document says it was American former student Knox who delivered the fatal knife blow to her 21-year-old roommate in 2007 and there were multiple aggressors at the scene.