The tribal Protestant people in Northern Vietnam do not face Government persecution, but the Protestant southern tribe, notably Hmong and H're tribal groups suffer from particular persecution. In May 2006, over 300 Montagnard people remained in Vietnamese prisons for their faith. A young Hroi man who refused to reject his Christian faith reportedly died from injuries received while under official interrogation in April 2007. By the 2008 estimates of Release International, many Christians from Vietnam's tribal highlands are still regarded as enemies and targeted as "agents of America". They are reportedly beaten, tortured and starved behind bars, despite the official claims and guarantees for freedom of religion.