ARAFAT, Saudi Arabia (AFP) - Iranian hajj pilgrims carried out a peaceful protest without incident on Thursday as millions of Muslims amassed for the peak of the world's largest annual pilgrimage.

Ignoring Saudi warnings against political activity, the Iranians chanted for Muslim unity and against the "enemies" of the faith in their camp at Arafat outside of Mecca.

"Death to America, death to Israel," thousands of Iranians chanted inside a huge tent on the Arafat plain.

No Saudi security forces were evident as Ayatollah Muhammed Rishari, the representative of Iranian supreme leader Ayatollah Ali Khamenei, led the Iranian delegation.

"We need to be purified from our wrongdoings in this hajj," he said in a statement...

The director general of the United Nations nuclear watchdog declared in unusually blunt language on Thursday that Iran had stonewalled investigators about evidence that the country had worked on nuclear weapons design, and that his efforts to reveal the truth had "effectively reached a dead end."

The comments by the official, Mohamed ElBaradei, came four days before he is to leave office after 12 years at the head of the International Atomic Energy Agency. His remarks refocus attention on Iran's alleged work on weapons design at the moment that the West is debating how to respond after Tehran backed away from a commitment it made in early October to temporarily send much of its nuclear fuel abroad...

The UN nuclear watchdog's governing body has passed a resolution condemning Iran for developing a uranium enrichment site in secret.

The International Atomic Energy Agency (IAEA) also demanded that Iran freeze the project immediately.

The resolution, the first against Iran in nearly four years, was passed by a 25-3 margin with six abstentions...