Chinese Foreign Minister Wang Yi has called on all member states of the Iran nuclear deal to uphold the treaty. Speaking at a news conference in Vienna, Wang said Friday's meeting was coming "at the right time" and was "necessary". CGTN's Kate Parkinson has more.

Diplomats arrived in Vienna for the first joint talks among the remaining signatories of the Iran nuclear deal, since US President Donald Trump's decision to pull out American support. Chinese Foreign Minister Wang Yi said preserving the deal is critical and that the treaty states would send a quote "united, determined and strong signal" that China, Britain, France, Germany and Russia remain committed to upholding the accord. But Tehran has been talking tough - warning that it could reduce its cooperation with the UN nuclear watchdog and saying that it will stand firm against US threats to impose fresh sanctions on Iranian oil sales. Diplomats have warned that they have limited scope for meeting Iran's demands. Speaking to French radio ahead of Fridays talks, French Foreign Minister Jean-Yves Le Drian said it would be hard to prepare a sanction-proof economic package to satisfy Iran before the first round of fresh US sanctions kicks in.

JEAN-YVES LE DRIAN FRENCH FOREIGN MINISTER "The sanctions start in early August. There's a second wave of sanctions that will take effect in November. For early August, it might be a little too soon, but for the month of November, we will try to reach it."

At the end of the talks, European Union foreign policy chief Federica Mogherini, who chaired the meeting, read a statement reaffirming the commitment of all parties to uphold the nuclear deal, but not adding anything new.

KATE PARKINSON VIENNA  "So the talks end with no breakthrough, just a promise of further talks, and really no guarantee that the Iran nuclear deal will survive. KP, CGTN, Vienna."