Police killed two Egyptian Moslem fundamentalists Saturday and arrested at least six others believed responsible for the assassination of a high-ranking government official whose murder was initially blamed on pro-Iraqi Palestinian terrorists, sources and reports said.

The Middle East News Agency said police stormed four fundamentalist hideouts at dawn, arresting six members of the Al Jihad (Holy War) Moslem extremist organization "who took part in the planning and the implementation" of the assassination of Speaker of Parliament Rifaat El Mahgoub.Members of Al Jihad, headed by a blind Moslem preacher named Omar Abdulrahman, were convicted of assassinating former Egyptian President Anwar Sadat in 1981.