article_snippet: U.S. Secretary of State John Kerry and Iranian Foreign Minister Javad Zarif, joined these talks Monday.
article_snippet: John Kerry, addressing reporters Saturday in Lausanne before leaving for London, said "substantial progress" had been made toward reaching a deal but that "important gaps remain.
article_snippet: John Kerry insisted that the international powers involved in these talks, the P5+1 -- consisting of Germany and the five permanent members of the U.N. Security Council: the United States, Russia, China, France and Britain -- were united in the international powers involved in the talks, the P5+1 -- consisting of Germany and the five permanent members of the U.N. Security Council: the United States, Russia, China, France and Britain -- determination to ensure that Iran's nuclear program is purely peaceful.
article_snippet: There has been "genuine progress" over the past 16 months since a joint plan was agreed and in his conversations with Zarif of the past few days, John Kerry said.
article_snippet: While in London, John Kerry met with John Kerry counterparts from the UK, Germany and France, as well as the European Union foreign policy chief, to discuss his counterparts from the UK, Germany and France, as well as the European Union foreign policy chief coordinated approach.
article_snippet: British Foreign Minister Philip Hammond spoke for the group, echoing John Kerry but saying while "substantial progress has been made in some areas," there were other areas that lacked agreement.
article_snippet: John Kerry also spoke Friday by phone with Russian Foreign Minister Sergey Lavrov and Chinese Foreign Minister Wang Yi.