The International Atomic Energy Agency says it has evidence that suggests links between Iran's ostensibly peaceful nuclear program and its military work on high explosives and missiles, according to a confidential agency report provided to member countries today.

The four-page report, which officials say was based at least in part on intelligence provided by the United States, refers to a secretive Iranian entity called the "Green Salt Project," which worked on uranium processing, high explosives and a missile warhead design. The combination suggests a "military-nuclear dimension," the report said, that if true would undercut Iran's claims that its nuclear program was solely aimed at producing electrical power.

The report will be debated by the 35 countries that make up the international agency's board when they meet in emergency session on Thursday to decide whether Iran should be reported to the United Nations Security Council for its nuclear activities.

The Green Salt Project derives its name from uranium tetrafluoride, known as Green Salt, which is an intermediate product in the conversion of uranium ore into uranium hexafluoride — a toxic gas that can undergo enrichment or purification into fuel for nuclear reactors or bombs.