Gheorghiu-Dej died of lung cancer in Bucharest on 19 March 1965. Gheorghe Apostol has claimed that Gheorghiu-Dej himself designated him party leader in waiting; in any case many perceived him as such in 1965. But Prime Minister Ion Gheorghe Maurer, who had developed hostility towards him, made sure that Apostol was prevented from taking power, rallying the Party leadership instead around longtime Gheorghiu-Dej protégé Nicolae Ceaușescu. Securitate general Ion Mihai Pacepa, who defected to the United States in 1978, wrote that Ceaușescu had allegedly told him about "ten international leaders the Kremlin killed or tried to kill"; Gheorghiu-Dej was among them.