The Soviets established a special commission on Afghanistan, comprising KGB chairman Yuri Andropov, Boris Ponomarev from the Central Committee and Dmitriy Ustinov, the Minister of Defence. In late April 1978, the committee reported that Amin was purging his opponents, including Soviet loyalists, that his loyalty to Moscow was in question and that he was seeking diplomatic links with Pakistan and possibly the People's Republic of China (which at the time had poor relations with the Soviet Union). Of specific concern were Amin's secret meetings with the U.S. chargé d'affaires, J. Bruce Amstutz, which, while never amounting to any agreement between Amin and the United States, sowed suspicion in the Kremlin.