Burgenstock [Switzerland], June 21 : The first round of high-level US-Iran diplomatic talks currently underway in Switzerland has concluded, with the session suspended after 80 minutes to allow the delegations to conduct " 'internal consultations' ", according to Iran's Fars news agency.   US Vice President JD Vance convened in Switzerland with senior Iranian officials on Sunday to mark the commencement of high-level diplomatic efforts aimed at resolving the ongoing conflict in West Asia. During the talks, mediated by Pakistan and Qatar, Vance articulated Washington's readiness to "fundamentally transform" its relations with Tehran, relaying a directive from President Donald Trump, who has encouraged both parties to turn "a new leaf" in their diplomatic engagement.