Iran nuclear program

The deadline for a framework agreement to curb Iran's nuclear program — and ease economic sanctions — was 6 p.m. ET Tuesday. The U.S. said enough progress had been made to warrant an extension.

The two sides have been trying to hammer out a historic accord curbing Iran's nuclear programs, but with less than 24 hours before a self-imposed deadline, there is still no news of a deal.

More diplomats are joining the discussions this weekend, hoping to broker a deal to ease years of disputes over Iran's nuclear program.