The raid in a rural area of northwest Colombia was the successful culmination of a plan in which part of the ransom money demanded by the kidnappers was paid to accomplices in Spain, as a way to find out where the captives were being held, said Humberto Guatibonza, head of a police anti-kidnapping unit said yesterday.
One of the captives, Maria Concepcion Marlaska Sedano, is the sister of a senior Spanish judge, Fernando Grande-Marlaska.
The kidnappers had demanded 500,000 euros in ransom. Part was paid to alleged accomplices in Spain, who were then arrested.
From the detainees police learned the captives, who were kidnapped on May 17, were being held in a remote area of La Guajira province near the border with Venezuela.
Upon arrival in Bogota yesterday they did not speak to reporters but gave the thumbs up sign.