Michaella McCollum and Melissa Reid could face up to 18 years in prison if convicted, Peruvian prosecutors have warned.
The pair have re-appeared in court after being charged last night after 11kg of cocaine was allegedly found in their luggage at Lima airport two weeks ago.
Both women say they were forced to carry the shipment against their will. Peruvian prosecutors said the crime carried a maximum penalty of 15-18 years in prison.
In a statement, the ministry said: "It should be noted that the prosecution has gathered sufficient evidence to suspect the alleged responsibility of both people."