In September 2020, anonymous U.S. intelligence sources claimed that Iran was planning an assassination attempt on Marks in South Africa. The plot, claimed the sources, was in retaliation for the U.S. drone strike in Baghdad, Iraq, that killed the former commander of Qods Force, Qasem Soleimani, and deputy leader of Iraqi Popular Mobilization Forces militia, Abu Mahdi al-Muhandis on January 3, 2020.