LONDON, June 23 (Reuters) - The U.S. has started waiving some sanctions on Iran under their interim deal to end the war, but fully unravelling a tangled web of restrictions on the country's activities and trade under any more comprehensive agreement will be much harder.

For years, President Donald Trump, Secretary of State Marco Rubio and Vice President JD Vance argued against deals that provided financial concessions to Iran, saying that giving the regime money fuels terror.

Iran-US war latest: US waives Iran oil sanctions as Tehran disputes Vance’s nuclear inspection claims - Iran will now be able to export oil in US dollars for the first time in decades

The US vice-president says a great deal of progress has been made after the first round of talks between the US and Iran.

The U.S. issued a sweeping rollback of sanctions on Iranian oil, offering Tehran an economic lifeline as negotiations toward a peace deal proceed.

BUERGENSTOCK, Switzerland/BEIRUT >> The United States waived sanctions on Iran for 60 days from today after the first talks under a nascent peace deal, and officials reported calm in Lebanon after fighting that had prompted Iran to declare the Strait of Hormuz closed.

President Trump has touted the interim agreement between the U.S. and Iran as a major step toward peace. See lawmakers' mixed reactions.

There was a rotation out of big tech that weighed on the S&P and Nasdaq, offsetting news of the U.S. waiving Iran oil sanctions for 60 days.

A New Fed Era? President Donald Trump and world leaders are gathering for the Group of Seven summit, with Trump’s Iran agreement, the war in Ukraine and the future of Western alliances likely to dominate discussions.

The US has lifted sanctions on Iranian oil exports for two months. The general license, announced by the US treasury as peace talks continued in Switzerland, is a move promised un