Four Uruguayan marines have been detained on suspicion that they abused a young man while serving as United Nations peacekeepers in Haiti.
The four men were charged with "private violence" against an 18-year-old who says he was raped last year.
The four have avoided charges of sexual assault, but could still be sentenced to up to three years in prison.
The scandal emerged a year ago, when mobile phone footage began circulating on the internet.
The footage appeared to show the marines abusing the young man last September at a UN base in the southern Haitian city of Port Salut.
The four are being detained pending a trial.
A fifth Uruguayan peacekeeper has been acquitted.
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