Two hundred Cham Muslims from 22 cities and provinces officially filed complaints against the Khmer Rouge with the special tribunal courts, officials said Friday.
The 200 were part of a larger group of 280 Muslim leaders whose representatives met with the Documentation Center of Cambodia this week.
The other 80 did not have enough documentation to warrant a tribunal complaint, center director Youk Chhang said Friday.
As many as 300,000 Chams died under the regime. However, some were also Khmer Rouge cadre.
"The suit from a minority group is important in helping the court to find if the Khmer Rouge regime [killing] was really a genocide or not," Youk Chhang said.
Tribunal spokesman Reach Sambath confirmed the co-prosecutor's office had received the suits.