<span style="color: #222222;">Iran has said that the United States must observe a landmark nuclear deal and halt economic terrorism against it, if it wants to hold talks. <br />'' <br />'' Tehran and Washington have been locked in a bitter standoff since last year when US President Donald Trump unilaterally pulled out of the 2015 deal that gave Iran relief from sanctions in return for curbs on its atomic programme. <br />'' <br />'' During a visit to Malaysia, Foreign Minister of Iran Mohammad Javad Zarif told reporters that the US is engaged in an economic war against the Iranian people and it will not be possible for us to engage with the United States unless they stop it. <br />'' <br />'' Referring to the nuclear deal, he said, they spoke to the United States and reached an agreement and now they need to implement the agreement that we have reached before any more talks. <br />'' <br />''<br />''Mr Trump said on  Monday that he was ready to meet Iran's President Hassan Rouhani within weeks, in a potential breakthrough reached during a G-7 Summit in the French seaside resort of Biarritz. But, Mr  Rouhani has said Washington must first lift sanctions imposed since its withdrawal from the nuclear deal.</span>