US Vice-President JD Vance makes an opening statement at the start of a quadrilateral meeting between the US, Iran, Pakistan, and Qatar at the Lake Lucerne Summit, at Buergenstock Resort Lake Lucerne, near Stansstad, Switzerland, June 21. [Photo/Agencies]

High-level negotiations aimed at permanently ending the Iran war ended in Switzerland early Monday, mediators Pakistan and Qatar announced, while technical talks continued amid efforts to translate a fragile ceasefire into a lasting agreement.

Iran's Foreign Minister Abbas Araghchi wrote on X early Monday to hail the mediation efforts by Pakistan and Qatar, saying that they "delivered major progress to end the Lebanese War".

In his message, Araghchi said the first real test of the understandings reached would be a deconfliction method created over the fighting between Israel and Hezbollah in Lebanon.

Iran's Foreign Ministry spokesman Esmail Baghaei, speaking to the state-run IRNA news agency, also said "good progress was made" and a mechanism will be arranged on safe passage of ships through the Strait of Hormuz.