Iran broke law by not revealing nuclear facility

Iran broke international law by not disclosing sooner its recently revealed uranium enrichment site, the head of the United Nation's nuclear watchdog agency said.

But the U.N. does not have credible evidence that Iran has an operational nuclear weapons program, Mohamed ElBaradei of the International Atomic Energy Agency said Tuesday.

"Iran has been on the wrong side of the law in so far as to inform the agency at an earlier date," ElBaradei told CNN's sister station in India, CNN-IBN. "Iran was supposed to inform us on the day it was decided to construct the facility. They have not done that."

Still, he said, "I do not think based on what we see that Iran has an ongoing nuclear weapons program.Iran has previously denied breaking the law.

"According to the [IAEA's] current governing rules, there was no urgency in reporting anything about this installation and we could have not announced it, but we did so on order to contribute to trust-building and transparency and we did so much sooner than the required time," Ali Akbar Salehi, director of the Iranian Atomic Energy Agency, said Sunday.