A self-imposed deadline of June 30 for Iran and six major powers to reach a final nuclear deal to resolve a decade-long standoff may be extended, Iran's state TV reported.
The United States and two key Asian allies discussed how to increase pressure on North Korea to halt its nuclear program and will urge China to help bring Pyongyang back to the negotiating table, officials said.
Iran's Supreme Leader Ayatollah Ali Khamenei said on Wednesday Tehran would not accept "unreasonable demands" by world powers during negotiations over its disputed nuclear program, and ruled out letting inspectors interview its atomic scientists.