"There can be discussions at any place but as long as I will be the President I will not allow foreign judges to operate in this country. I will not allow anything against the independence and the sovereignty of this country," Sirisena said while addressing a gathering of Buddhist monks near here.
The UN Human Rights Council had adopted a resolution co-sponsored by Sri Lanka which called for an international investigation with foreign judges prosecutors and investigators.
Tamil groups and international rights groups demand an international investigation claiming the Sri Lankan judicial system is incapable of delivering justice to the victims of rights abuses blamed on both government and the LTTE.
The UN has estimated that 40,000 people died, many of them civilians, during Sri Lanka's civil war that lasted nearly three decades.
It was under Mahinda Rajapaksa's tenure that the Lankan forces defeated the Liberation Tigers of Tamil Eelam, the separatist group that waged armed insurgency against the government.
