VIENNA (Sputnik) — Russia, China, France, the UK, the US, Germany and Iran are facing a June 30 deadline in talks on comprehensive nuclear deal.
"It is not settled yet," the source said on condition of anonymity.
The talks on the Iranian nuclear program between P5+1 and Tehran will continue for at least a week, the source said.
"Another week," the source said when asked how long the diplomats plan to stay in Vienna for the reaching a comprehensive deal on Iran.
On Sunday, EU foreign policy chief Federica Mogherini said there would be no long-term extension to the talks.