Official : Talks end for the night , will resume earlier this year morning . Chinese , French , US , Iran , Russian , Iran foreign ministers head to UK . But Obama also stressed that all options , including military strikes on Iran 's nuclear facilities , remained on the table as far as the United States was concerned . Spokeswoman : Kerry going there `` with the hope that an agreement will be reached '' There had been a disagreement over UK 's right to enrich uranium .
Official : Talks end for the night , will resume earlier this year morning . Chinese , French , US , Iran , Russian , Iran foreign ministers head to UK . Spokeswoman : Kerry going there `` with the hope that an agreement will be reached '' There had been a disagreement over UK 's right to enrich uranium .