Iran and 6 world powers are continuing their talks on Iran's nuclear program, with the deadline of July 20th approaching to clinch a comprehensive deal.
US Secretary of State John Kerry and his counterparts from Britain, France and Germany joined the talks in Vienna, Austria, on Sunday.
They are trying to break the deadlock over key issues, including to what extent Iran should curb its uranium enrichment activities.
After Sunday's meetings, German Foreign Minister Frank-Walter Steinmeier said all options were presented again. He said he hopes Iran will make the right decision.
British Foreign Secretary William Hague called the talks meaningful. But he said there are very significant gaps.
Later on Sunday, Kerry held direct talks with Iran's Foreign Minister Mohammad Javad Zarif. He is believed to have called on Iran to make concessions.
Jul. 14, 2014 - Updated 02:26 UTC