Talks in Vienna to reach an agreement on the Iran nuclear question will continue into the weekend. <br /><br /> As another deadline passed, Britain’s foreign secretary said progress had been “painfully slow.”<br /><br /> Iran’s foreign minister Mohammad Javad Zarif has been trying to hammer out a final deal limiting his country’s nuclear programme.in return for sanctions relief. <br /><br /> “Some progress has been made but we are not there yet … I doubt it will happen today … it seems that were are going to spend the weekend in Vienna,” Zarif told reporters.<br /><br /> Iran Zarif on the balcony, JohnKerry in the garden FedericaMog behind the window, Coburg Neighbours soap opera pic.twitter.com/F5BeqL6i66— Ali Hashem علي هاشم (alihashem_tv) July 10, 2015<br /> <br /><br /> A senior Western diplomat reportedly said the longer the talks went on, the harder it would be to get a deal. <br /><br /> But a German foreign ministry spokesman said a deal is possible in the coming days, adding that, “the devil is absolutely in the detail.”