As President Donald Trump ramps up pressure on Iran, Tehran's foreign ministry announced a willingness to negotiate only the nuclear issue and not its support of terrorism.

U.S. President Donald Trumpon Tuesday restored his "maximum pressure" campaign on Iran that includes efforts to drive its oil exports down to zero in order to stop Tehran from obtaining a nuclear weapon.

US President Donald Trump took an executive action Tuesday to restore the so-called "maximum pressure" campaign on Iran aimed at preventing the Islamic Republic from obtaining nuclear weapon. Speaking to reporters in the Oval Office as he was signing the document -- of which the exact content and form the White House has yet to make public -- Trump said he took the action somewhat hesitantly,