European powers have violated a 2015 international nuclear deal, Iran’s foreign minister told a conference in India on Wednesday, a day after Britain, France and Germany launched a complaint against Tehran for non-compliance. The European states initiated a so-called dispute mechanism process, saying Iran had progressively scaled back its commitments under the agreement. The move, which came at a time of red-hot tensions between Iran and the United States, sparked anger in Tehran and on Wednesday Iran’s foreign minister Javad Zarif said Europe was being “bullied” by Washington.