Ulster woman Michaella McCollum and her Scottish co-accused Melissa Reid are reported to have spent their first night in a new cell.
The pair, who are charged with promotion of drug trafficking over an alleged attempt to smuggle £1.5m in cocaine out of Peru, were said to have been moved to a local prison.
They were moved early yesterday from a district court in Lima’s port of Callao to a holding cell.
The two women, both 20, could spend up to three years awaiting trial.
On Wednesday McCollum, from Dungannon, Co Tyrone, and Reid, from Glasgow, were refused bail.
They face up to 15 years in prison if convicted, the prosecutor’s office in Callao, near Peru’s capital Lima, has said.
The pair were arrested while trying to board a flight from Lima to Madrid. Peruvian police said they found around 11 kilos (24lb) of cocaine hidden inside food packages. They claim that an armed gang forced them to carry the drugs.