VIENNA, Austria — China, an opponent of harsh U.N. Security Council sanctions against Iran, has nonetheless recently provided the International Atomic Energy Agency with intelligence linked to Tehran's alleged attempts to make nuclear arms, diplomats have told The Associated Press.

In a summary recently forwarded to the AP, the National Council of Resistance of Iran, an opposition group that claims to have informants inside the Iranian government, identified three others as Revolutionary Guard commander Fereydoon Abbasi, Seyed Jaber Safdari and Mohammed Mehdi Nejad-Nouri.

It said the three and others are involved in clandestine nuclear weapons-related research at three Iranian universities: Beheshti; Malek Ahstar and Imam Hossein.

Asked for verification, a senior diplomat of an IAEA member state said that a fact check run by his country's relevant agency showed the claims to be generally accurate. Another senior diplomat also said the information appeared to be fairly reliabl