Zarif and the senior Swiss diplomat, who has traveled to Iran to mark the 100th anniversary of bilateral diplomatic relations, held one-on-one negotiations before a meeting of delegations.
Apart from marking the longevity of the bilateral ties, the visit has also featured discussion over regional and international matters as well as expansion of mutual relations, Press TV reported.
Switzerland, which also represents the United States’ interests in Iran, hosts a so-called humanitarian channel, known as the Swiss Humanitarian Trade Arrangement (SHTA), which is meant to help Tehran avoid American sanctions. According to some reports, Cassis’ stay was also expected to help expand the channel.