Amanda Knox sisters 'thankful' for prison visit
28 September 2011 Last updated at 16:28 BST
Amanda Knox's sisters have said they "are thankful" for an hour-long visit, as her appeal continues in Italy.
Knox is attempting to overturn the guilty verdict over the murder of British student Meredith Kercher in Perugia in 2007.
Knox was sentenced to 26 years in prison, while 27-year-old ex-lover Raffaele Sollecito was given 25 years.