The Swiss ambassador to Iran's display of a cartoon depicting Prime Minister Benjamin Netanyahu being defecated upon by two doves was condemned as "an ugly act" by the Foreign Ministry late Friday.
Switzerland expressed regret earlier Friday after Ambassador Giulio Haas showed the cartoon at an event promoting Iranian business opportunities.
Haas spoke to hundreds of Swiss and Iranian business people at a Zurich hotel on Thursday.
The Swiss Federal Department of Foreign Affairs (FDFA) said the "questionable cartoon" was used without its knowledge. "The FDFA regrets the use of this cartoon and considers it tasteless," it said in a statement.