Breaking news is raising eyebrows around the world as the world powers are confirming that a deal has been formally reached with Iran on its controversial nuclear program.
Details are still emerging as this is a developing story. Stay tuned.
-- The RallyPoint.com team
By Jim Sciutto. Ben Brumfield and Chelsea J. Carter, CNN
Geneva, Switzerland (CNN) -- [Breaking news update at 9:08 p.m. ET]
(CNN) -- An agreement has been reached on Iran and its nuclear program following intense talks in Geneva, European Union spokesman Michael Mann tweeted early Sunday.
[Original story published at 8:48 p.m. ET]
(CNN) -- Efforts to hammer out an agreement between Iran and six world powers over Tehran's nuclear program stretched into the early morning hours Sunday as negotiators struggled to overcome differences.
The sticking point, according to Iran's deputy foreign minister, is over the wording of an initial agreement that would temporarily halt Iran's nuclear development program and lift some sanctions while a more formal deal between the two sides is worked out.
The assessment by Abbas Araqchi, carried by Iran's Fars News Agency, came during a marathon fourth day of negotiations.
Both sides have hinted that a deal is close.
"Work is still ongoing as we speak here and now. There are still meetings going on of different types. A deal has not been done," a European Union diplomat, speaking on condition of anonymity because of the sensitivity of the issue, told CNN.
The two sides are having tough debate over the wording of the deal, specifically over details that would provide short-term relief from sanctions that Iran has been under, Araqchi told FARS.
Araqchi told Iranian state-run Press TV early Sunday that "98% of the nuclear issues" have been resolved.
The negotiations initially scheduled for two days were extended to four days with the hopes of reaching an agreement.