Negotiations over Iran's nuclear program are heading into double overtime, with the United States saying enough progress has been made to extend the talks into Thursday.
State Department spokeswoman Marie Harf says Secretary of State John Kerry will stay at least until then to continue negotiating.
"We continue to make progress but have not reached a political understanding," she said late Wednesday.
Iran and six powers have been locked in haggling over what an initial understanding should look like for nearly a week, reflecting the significant gaps facing them.
Officials say the intention is to produce a joint statement outlining general political commitments to resolving concerns about Iran's nuclear program in exchange for sanctions relief. In addition, they are trying to fashion other documents that would lay out in more detail the steps they must take by June 30 to meet those goals. (AP)
