Nearly a decade after the historic nuclear deal with Iran, Switzerland has reintroduced UN sanctions against the country. + Get the most important news from Switzerland in your inbox The measures include an arms embargo, a ban on further uranium enrichment and various sanctions against individuals and organisations. + Without the US, nuclear talks between Iran and Europe make fragile progress UN sanctions were reinstated on September 28, after the deadline for reaching an agreement between Tehran and its negotiating partners – Germany, the United Kingdom and France – had passed. The three countries accuse Iran of breaching the 2015 Vienna nuclear deal, including enriching uranium far beyond levels required for civilian use. A day later, the European Union adopted the sanctions. The 2015 Iran nuclear deal The deal set a cap on Iran’s uranium enrichment at 3.67% and imposed strict monitoring to prevent Tehran from developing a nuclear weapon. In return, sanctions were meant to be lifted.