Key Issues Unresolved as Iran Nuclear Talks Continue Past Deadline

Officials express optimism that progress can occur.

A joint statement of progress is expected later today.

British Foreign Secretary Philip Hammond, speaking to reporters, said “a broad framework of understanding” exists, but that some issues still need to be worked out. Germany’s foreign office shared similar sentiments, writing in a statement, “Progress is visible. Nothing is agreed but if there is good will on all sides an agreement is possible."

A deadline for the agreement had been set for March 31. While the deadline has passed, Iran’s foreign minister, speaking Tuesday, said the negotiations have been productive.

"We've accomplished quite a bit, but people needed to get some rest and start over early in the morning," Iranian Foreign Minister Mohammad Javad Zarif said. "And I hope we can finalize the work on Wednesday -- and hopefully begin the process of drafting."