FIVE INSPECTORS FROM THE U.N. NUCLEAR WATCHDOG AGENCY HAVE ARRIVED IN TEHRAN TO VISIT IRAN'S URANIUM ENRICHMENT AND REPROCESSING FACILITIES, STATE-RUN TELEVISION REPORTED SATURDAY. IRAN'S DEPUTY NUCLEAR CHIEF, MOHAMMAD SAEEDI, SAID THE INSPECTORS WOULD VISIT THE NATANZ URANIUM ENRICHMENT PLANT AND THE ISFAHAN URANIUM CONVERSION FACILITY, BOTH IN CENTRAL IRAN, LATER SATURDAY. IAEA CHIEF, MOHAMED ELBARADEI, IS TO VISIT IRAN NEXT WEEK TO TRY TO WREST CONCESSIONS FROM TEHRAN ON ITS NUCLEAR ENERGY PROGRAM, IAEA OFFICIALS AND DIPLOMATS ACCREDITED TO THE AGENCY SAID FRIDAY. HE COULD ARRIVE AS EARLY AS SUNDAY OR MONDAY, THE OFFICIAL ISLAMIC REPUBLIC NEWS AGENCY REPORTED.