"The three parties exchanged views on the Iran nuclear issue and other issues of common concern," Chinese state broadcaster CCTV said.

State media did not share any further details of the talks, attended by China's Vice Foreign Minister Ma Zhaoxu, Russian Deputy Foreign Minister Sergei Ryabkov and Iranian Deputy Foreign Minister Kazem Gharibabadi.

The United States withdrew from a landmark Iran deal, which had imposed curbs on Tehran's nuclear programme in return for sanctions relief, during President Donald Trump's first term.

Tehran adhered to the 2015 deal for a year after Washington's withdrawal but then began rolling back its commitments.

Efforts to revive the pact have since faltered.

Beijing has said the talks would aim to "strengthen communication and coordination, to resume dialogue and negotiation at an early time".