U.S. Secretary of State John Kerry says the major powers were unified on an Iran nuclear deal during talks in Geneva but the Iranians were unable to accept it.

Speaking to reporters in Abu Dhabi on Monday, Kerry said they were unified on Saturday when the proposal was presented to the Iranians.

He said -- quote -- "The French signed off on it, we signed off on it."

But he said that Iran wasn't able to accept the deal "at that particular moment."

Kerry also says that Israeli Prime Minister Benjamin Netanyahu "needs to recognize that no agreement" with Iran has been reached and his opposition is premature.

Kerry says "the time to oppose (a deal) is when you see what it is."