A international coalition of lawyers on Wednesday urged the United States not to grant Sudanese President Omar al-Bashir the visa he requires to attend the UN General Assembly next week, dpa reported.
The Sudanese leader is wanted for war crimes and genocide by the International Criminal Court at The Hague.
The Coalition for the ICC said it was concerned by media reports that al-Bashir has applied for a US visa.
"If al-Bashir comes to the UN, the Coalition will monitor very closely that UN officials and governments respect the principles of 'non essential contact' with persons subject to international arrest warrants for the worst crimes against humanity," said William Pace, convenor of the coalition.
Sudan is scheduled to address the 193-nation assembly on September 27.
The US is not a party to the ICC, but it has strongly defended human rights in the war-torn Sudanese region of Darfur and supported the work of the ICC.