June 22 (Reuters) - Talks between Iran and the U.S. have concluded successfully in Switzerland, Pakistani Prime Minister Shehbaz Sharif said on Monday.

"The discussions were held in a positive and constructive atmosphere and yielded encouraging progress, including agreement on a roadmap toward a final deal within 60 days, the establishment of a high-level committee to provide political oversight, and the commencement of further technical talks," he said in a post on X.

(Reporting by Sakshi Dayal; Editing by YP Rajesh)