On 27 April, OFAC advised that it has designated 4 senior officials of Iran’s Islamic Revolutionary Guard Corps Intelligence Organisation (IRGC-IO), an entity that is being concurrently designated by the State Department for its role in the hostage-taking or wrongful detention of US nationals in Iran. OFAC also implemented the Department of State’s designation of Russia’s Federal Security Service (FSB), in addition to the IRGC-IO, for their involvement in the wrongful detention of US nationals abroad.