Talks between the U.S. and Iran have made "great progress" despite "threatening" and "whining," U.S Vice President JD Vance has said.

Speaking on Monday, Vance said the talks in Bürgenstock, Switzerland, were continuing and Tehran had agreed to permit International Atomic Energy Agency inspectors back into Iran. The talks were strained over the weekend when Iran announced it had closed the Strait of Hormuz over Israeli strikes on Lebanon, saying these violated the ceasefire.