The lawyer representing Michaella McCollum has said he is unable to disclose the details of the hearing that took place on Tuesday.
Peter Madden said McCollum accepted the charges and a sentencing hearing will take place next Tuesday 1 October.
Madden said: "I intend to travel to Lima next week to attend the sentencing hearing and after the sentence is handed down by the judge, it will be possible make further comment."
More top news
New photos of Princess Charlotte, taken by her mother, have been released by Kensington Palace.
Gales likely further south, locally severe, but winds easing this evening.
Three workers at Mini dealership suspended after photo emerges of staff kneeling in a IS-victim pose with bags over their heads.