EU says Friday meeting to focus on possible US return to 2015 accord, which Biden has vowed to rejoin if Tehran comes back into compliance

Tehran has reportedly informed UN inspectors that it plans to use two more clusters at Natanz facility to refine uranium up to 5% fissile purity

Politicio report said Biden administration could make the proposal in bid to launch nuclear talks, but Tehranian TV says it is out of the question

Statement suggests Washington softening its stance in stalemate with Tehran, after both sides had demanded the other make the first move toward compliance

Lawmakers urge president to use 'full force' to achieve deal with Tehran that would limit its missile program, destabilizing activities and nuclear weapons program

No injuries in the latest in series of attacks Washington has blamed on Iranian-backed militias; shell impact damages home

Foreign minister says that after approaching elections, which will see Rouhani leave office, Tehran will have a regime that will 'not be able to do anything serious'

US national security adviser says Washington has launched talks through intermediaries, is awaiting a response from Tehran

State Department stresses again that Biden administration wants 'compliance for compliance' and to 'lengthen and strengthen' the 2015 nuclear deal

American and European diplomats say both countries may agree on steps toward returning to the JCPOA