Iran says its nuclear program is for civilian energy purposes, and so peaceful. But it had enriched uranium to a near weapons-grade level, and well beyond what is needed for energy, putting it close to developing a bomb if it opted to do so.

Trump's administration spent months trying to convince Tehran to enter into a nuclear deal before it joined a bombing campaign spearheaded by Israel.

While discussing the situation around Iran, Putin emphasized the need to resolve all issues by political and diplomatic means, said Yuri Ushakov, his foreign affairs advisor.

Putin tells Trump Russia will continue Ukraine war until achieving its goals, just two days after the U.S. halts some military aid to Ukraine.