DUBAI, United Arab Emirates (AP) — U.S.-based analysts have told The Associated Press that they believe a fire at an Iran nuclear site struck a new centrifuge production facility. The fire happened early Thursday at Natanz, an underground facility where Iran enriches uranium. Two analysts say they believe the fire struck the production, based on a photo released by Iran, the site of the fire and satellite images. They two analysts — a researcher at the James Martin Center for Nonproliferation Studies at the Middlebury Institute of International Studies in Monterey, California, and an expert at the Institute for Science and International Security — both study Iran. There was no immediate comment from Iranian officials.