“The U.S. on Monday imposed its second round of sanctions in less than a week on people and firms in Africa who it says have provided financial or material support to the Islamic State group. The latest financial penalties target South African entities, including one cell leader, Farhad Hoomer, accused of expressing “the will and intent to attack the interests of the United States,” the Treasury Department said in a statement. Last week, the U.S. sanctioned what it said was a Somali Islamic State weapons trafficking cell. Government reports outline how the Islamic State group is expanding its presence in Africa, after the group faced defeats in Iraq and Syria. The State Department has designated nine groups worldwide as IS affiliates and foreign terrorist organizations. In the latest action, Treasury’s Office of Foreign Assets Control designated four people and eight companies controlled by individuals that it said were in the South African Islamic State cell — including Nufael Akbar, Yunus Mohamad Akbar, Mohamad Akbar, and Umar Akbar. Their gold trading, construction and other firms are targeted for sanctions.”