Done deal? Iran nuclear agreement to be announced Monday, report says

An agreement aimed at curbing Iran's nuclear program in exchange for sanctions relief will likely be announced Monday, according to a published report. 

Two diplomats involved in ongoing talks in the Austrian capital of Vienna told the Associated Press Sunday that final details of the pact were still being worked out. Once it is complete, a formal, final agreement would be open to review by officials in the capitals of Iran and the six world powers at the talks, they said. The diplomats involved demanded anonymity because they were not authorized to discuss the negotiations publicly.
The envoys had said that it was possible for a provisional agreement to have been reached Sunday evening. However, senior Iranian and U.S. officials told the AP there was not enough time to do so.
"We are working hard, but a deal tonight is simply logistically impossible," the Iranian official said, noting that the agreement will run roughly 100 pages.
The senior U.S. official declined to speculate as to the timing of any agreement or announcement but said "major issues remain to be resolved."
Despite the caution, the negotiators appeared to be on the cusp of an agreement.