Accra, July 26, IRNA Foreign Minister Mohammad Javad Zarif on Tuesday conferred with Ghanaian President John Dramani Mahama. Zarif and Dramani Mahama called for expansion of relations and cooperation in the international organizations. Zarif is leading a politico-economic delegation on a tour to four African countries. He visited Nigeria and is currently in Ghana. He is due to visit Guinea Conakry and then Mali. By IRNA