GENEVA (AP) — Switzerland’s top criminal court on Wednesday convicted a former interior minister of Gambia for crimes against humanity and sentenced him to 20 years over his role in murder, torture and other repression committed by the West African country’s security forces under its longtime dictator.

Prosecutors had sought a life sentence for Ousman Sonko, Gambia’s interior minister from 2006 to 2016 under then-President Yahya Jammeh. But legal rights groups, led by TRIAL International, which helped bring the case, hailed what they called a landmark decision involving a former government official for crimes against humanity, saying it could set a precedent for international justice.

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