The first prime minister appointed by the revolutionary government was Mehdi Bazargan. He reached out to the U.S. government for military arms to help consolidate his position; however, the Carter administration chose not to become involved in Iran's internal affairs. By the fall of 1979, Prime Minister Bazargan's moderate faction began to lose the internal struggle to the rising extremist faction in the revolutionary government. On 4 November 1979, elements of the extremist faction seized the United States embassy and held the American embassy employees hostage. As a result of the hostage taking, the US government placed an embargo on Iran.