Lausanne, Switzerland (CNN)Nuclear talks reached a critical point Saturday as the ministers of France and Germany arrived to push a framework agreement with Iran ahead of Tuesday’s deadline.
The talks hit a snag as the negotiations entered their third day, with Iran standing firm on several sticking points that could jeopardize a deal, senior U.S. officials and Western diplomats said.
The sources said Iran has refused to budge on key issues centering around the scope of advanced nuclear research that Iran could continue to do while a deal is in effect, as well as the pace of sanctions relief.
“The Iranians are being very tough on the most difficult issues,” a senior U.S. official told CNN. “We are headed toward the deadline, so in some ways we expect this, but we really don’t know if we will get there.”