Iran said on Tuesday that technical negotiations with the United States in Burgenstock, Switzerland, had concluded.

The talks were held as part of Qatari- and Pakistani-mediated negotiations aimed at ending the US-Israel-Iran war.

Iran’s Deputy Foreign Minister Kazem Gharibabadi, who headed the Iranian technical delegation, said the four-party talks produced understandings on the structure of future negotiations, including the creation of working groups and mechanisms for implementing previous agreements, according to the official IRNA news agency.

He said the discussions followed a meeting of the high-level committee on Sunday, which monitored the implementation of the Islamabad Memorandum of Understanding. The meeting continued into Monday.

“Technical discussions were held to determine the implementation mechanisms of the memorandum of understanding and the statement issued after the high-level meeting, and the necessary understandings were reached,” Gharibabadi said.

Under the agreed framework, future negotiations will be overseen by a high-level committee comprising Iranian Parliament Speaker Mohammad Bagher Qalibaf and Foreign Minister Abbas Araghchi, US Vice President JD Vance, Pakistani Prime Minister Shehbaz Sharif and Qatari Prime Minister Sheikh Mohammed bin Abdulrahman Al Thani.

Gharibabadi said the sides agreed to establish four working groups focusing on sanctions relief, nuclear-related sanctions, reconstruction and economic development, and monitoring and implementation.

He added that the participants also agreed to create a contact mechanism among member states, draft a memorandum guaranteeing safe commercial shipping through the Strait of Hormuz and establish a Lebanon conflict-prevention unit involving the participating countries along with Pakistan and Qatar.

The heads of the four technical teams will report directly to the high-level committee and supervise the activities of the working groups and newly created bodies, he said.

According to Gharibabadi, the talks also covered procedures for issuing a general licence for Iranian oil, petroleum and petrochemical exports and related services, as well as arrangements concerning the release of frozen Iranian assets.

He said the United States had issued a general licence authorising the sale of Iranian petroleum and petrochemical products and related services, adding that the measure had been published on the website of the Office of Foreign Assets Control (OFAC).

The deputy foreign minister said the parties had also agreed on the immediate implementation of arrangements for the release of $12 billion in frozen Iranian funds.