TEHRAN: Iran pressed the United States on Monday (Jun 2) for guarantees that it will drop sanctions as a condition for a nuclear deal, after the White House reportedly sent a proposal it deemed "acceptable". With Iran and the United States engaged in talks over Tehran's nuclear programme since April, Washington's proposal for a deal came after a leaked UN report said Iran had stepped up production of highly enriched uranium. Iran's top diplomat and lead nuclear negotiator was due to meet the