The United States temporarily suspended sanctions on Iranian oil on Monday after Vice President JD Vance said Iran would let UN nuclear inspectors return to the country, following talks in Switzerland.Last week, Tehran and Washington signed a memorandum of understanding laying the groundwork for the negotiations, after nearly 40 days of fighting that was followed by a shaky and often-broken ceasefire.Officials said conditions had been set for 60 days of technical talks to begin, again in Switzerland, to secure a long-term settlement."We laid a very good foundation for a successful final deal," Vance told reporters at Switzerland's luxury Burgenstock resort, adding that "the final deal is the house... We haven't built the house, but we've laid a successful foundation to get to a good place for the American people".Separately, the US Treasury said it was temporarily lifting sanctions on Iran to allow the Islamic Republic to produce, sell and deliver crude oil and related products through August 21.US Treasury Secretary Scott Bessent cited Tehran's commitment in ongoing negotiations to "free and open transit" in the Strait of Hormuz and permission for International Atomic Energy Agency (IAEA) inspectors to enter their country as a reason for pausing the sanctions.