Iranian President Hassan Rouhani said today that Tehran would respond appropriately to new US sanctions but that Iran remained committed to its nuclear deal with world powers. <br/><br/>His comments came a day after the US and Iran traded tit-for-tat sanctions over the Islamic republic's ballistic missile programme. <br/><br/>The State Department slapped sanctions on 18 individuals and entities in Iran, hours after the White House admitted Tehran was sticking to the 2015 agreement. <br/><br/>Iran hit back with its own sanctions against American people and entities that have acted against the Iranian people and other Muslim peoples of the region.<br/><br/>Iran's Parliament yesterday voted to streamline a bill that would increase funding for the country's missile programme and Revolutionary Guards in response to Washington's adventurism in the region.<br/><br/>Rouhani accused his American counterpart Donald Trump of breaking international deals on Cuba, North Korea and climate change, all reached under Trump's predecessor Brack Obama.