Melissa Reid and Michaella McCollum, who pleaded guilty to attempting to smuggle £1.5 million worth of cocaine out of Peru, will be sentenced next week at a new hearing.
The pair gave behind-closed-doors pleas, in the port town of Callao. A spokesman for the court in Callao said:
They will automatically have a sixth off from the minimum jail sentence of eight years and will be sentenced to six years and eight months in prison.
Sentencing will take place on October 1 at a new hearing.
More top news
Springwatch presenter Chris Packham describes his battle with depression as "great, hopeless vacuum".
A newly promoted police officer caused a sensation with local women on Facebook
Ex-London mayor Ken Livingstone says he is sorry for the "disruption" caused by his comments that Adolf Hitler was a supporter of Zionism.