Interim deal from 2013 between six world powers and Iran has been extended twice . Parties are seeking a framework agreement -- or main principles of final deal -- by next week . The U.S. is pushing for an interim accord that would allow sanctions to be lifted in exchange for restrictions on Iran's nuclear program, but the other five permanent members have said they will not accept any such arrangement
Interim deal from 2013 between six world powers and Iran has been extended twice . Parties are seeking a framework agreement -- or main principles of final deal -- by next week . Seven countries are at negotiating table , but others such as Israel follow from the outside .