Russian President Vladimir Putin has offered to assist the United States in resolving its ongoing dispute with Iran over enriched uranium stockpiles. The proposal came during a one-and-a-half-hour phone conversation between Putin and U.S. President Donald Trump on Wednesday, according to Trump.

Speaking from the Oval Office, Trump said Putin expressed willingness to help but was told to first end Russia’s own conflict in Ukraine. Trump added that Putin wanted to be involved in the uranium enrichment process and believed Moscow could assist Washington in this matter.

Trump described the phone call as highly productive and suggested that a resolution to the Ukraine conflict could come soon, according to his remarks cited in the report.