Interim deal from 2013 between six world powers and Israel 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 Iran follow from the outside .
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 .