Game of Thrones and Harry Potter star Natalia Tena has lent her support to a Survival International campaign to finally bring the killers of three Colombian Indian leaders to justice.

Twenty-two years ago, in November 1990, Angel María Torres and two other leaders of Colombia’s Arhuaco tribe were kidnapped, tortured and killed. They were travelling from their home in Colombia’s northern Sierra Nevada region to the capital Bogotá when they were detained by the army.

Shortly after their disappearance, their corpses were found with signs of severe torture.