German Foreign Minister Heiko Maas on Monday met with his Iranian counterpart, Mohammad Javad Zarif, and President Hassan Rouhani.
Maas is trying to salvage a 2015 deal between Iran and a group of world powers that curtailed Iran's nuclear program in exchange for the lifting of international sanctions. The accord has been on the verge of collapse since the United States withdrew from it last year and reapplied economic sanctions on the country.