Iran now faces an "unprecedented" level of isolation after global bodies condemned its nuclear program and an alleged terror plot, a senior U.S. official said Saturday, November 19, AFP reported.

"They see themselves wholly isolated here," said US National Security Advisor Tom Donilon.

"It is the case I think, that the isolation that Iran is undergoing right now... really is unprecedented," Donilon told reporters in Indonesia on the final day of President Barack Obama's Pacific tour.

Donilon made the case that U.S. diplomacy designed to make Iran a pariah for what Washington says is the pursuit of nuclear weapons was working.

On Friday the UN atomic agency's board passed a resolution condemning Iran's nuclear activities after the watchdog's damning recent report but stopped short of setting Tehran a deadline to comply.

The United Nations General Assembly meanwhile passed a resolution demanding that Iran cooperate with an investigation into the alleged plot by Iranian government officials to assassinate the Saudi envoy.