Senior Chinese and Russian diplomats said dialogue should only resume based on "mutual respect" and all sanctions ought to be lifted.

The meeting came days after Iran rebuffed President Trump's proposal for nuclear talks. Trump sent a letter calling for Iran to either enter into negotiations or face possible military action.

Representatives of China, Russia and Iran called Friday for an end to U.S. sanctions on Iran over its rapidly advancing nuclear program and a restart to multinational talks on the issue. The three countries' meeting was the latest attempt to broach the matter and come after U.