Flying object fever has gripped Iran after dozens of reported sightings in the summer and in recent weeks. State-run media has reported sightings of unknown objects flying over parts of Iran where nuclear facilities are located. "The unidentified flying objects could be satellites, comets or spying or reconnaissance crafts trying to monitor Iran's nuclear installations," Mahini said. "Flights of unknown objects in the country's airspace have increased in recent weeks ... (they) have been seen over Bushehr and Isfahan provinces," the daily Resalat reported today. There are nuclear facilities in both provinces. The timing of the reported increase in sightings, which comes as the United States is urging allies to confront Iran over its nuclear program, has strengthened Iranian public perceptions that the objects are surveillance or hostile aircrafts monitoring Iran. Iran's Air Force chief Gen. Karim Ghavami was quoted in Iranian newspapers Saturday as saying that Iran was fully prepared to defend any threat to its nuclear installations.