Radwan Daoud alleges that he has been subjected to torture while in the custody of the Sudanese National Intelligence and Security Services (NISS) in Khartoum. He made the allegation when his family was first allowed to visit him on 30 December 2017. He was arrested on 6 December 2017 and is yet to be charged. He has been denied access to a lawyer. Radwan Daoud is a dual national of the US and Sudan.