US and Iran end ceasefire talks without agreement and blame each other

The United States and Iran ended face-to-face talks on Sunday without an agreement, leaving a fragile two-week ceasefire in doubt.

U.S. officials said the negotiations collapsed over what they described as Iran's refusal to commit to abandoning a path to a nuclear weapon, while Iranian officials blamed the U.S. for the breakdown of the talks without specifying the sticking points.