The big picture:
The United States was one of Israel's accomplices in the attack on Iran, and Switzerland acted as the protecting power for the United States' interests in Iran due to the absence of formal diplomatic relations between the two countries.
Iran’s Foreign Ministry had summoned the caretaker of Switzerland’s embassy in Tehran to protest the Israeli regime’s military operation against the country.
What it's saying:
The decision was made after a comprehensive risk analysis and in consultation with Iran and the U.S., the embassy announced posting in X.
"Switzerland continues to represent US interests in Iran under its protecting power mandate," the post reads, adding that "Consular services, including visa issuance, are not yet available at this time."
Go deeper:
Iran summons Swiss envoy to protest Israel’s savage attack, breach of sovereignty
Hossein Amiri