Five Swiss diplomats left the Iranian capital with their families by land by their own means on Tuesday, a Swiss foreign ministry spokesperson has confirmed. +Get the most important news from Switzerland in your inbox Seven diplomats remain in Tehran, mainly to fulfil the mandate to protect American interests in Iran. The Swiss channel is active for both parties (the United States and Iran) and in both directions. "And I can tell you that it is being used by both sides,” Nicolas Bideau, head of communications at the foreign ministry, told the Keystone-SDA news agency. “Swiss Ambassador Nadine Olivieri is still in Teheran; she leads Swiss diplomacy in Iran," he told Swiss public television, RTS, on Tuesday. “Swiss staff who are not active on the diplomatic front have left Iran". "Five transferable staff with their families left Iran on Tuesday," said Bideau, adding that the representation in Tehran has seven transferable staff and 23 local staff. In addition, "two accompanying ...