Complex sentence: Passengers of the chartered flight include three staff members of the Chinese delegation to the Bandung Conference, one staff member of the delegation of the Democratic Republic of Vietnam, the rest journalists--five from China, one from Poland, and one from Austria.
Split into simpler sentences: Passengers of the chartered flight included three staff members of the Chinese delegation to the Bandung Conference and one staff member of the delegation of the Democratic Republic of Vietnam. The rest of the passengers were journalists--five from China, one from Poland, and one from Austria.