The Guardian | Patrick Wintour and�Julian Borger: The�European Union�is scrambling to arrange a crisis meeting with Iran after Donald Trump pulled out of the nuclear agreement, as the Iranian president Hassan Rouhani said Europe had a �very limited opportunity� to save the deal.

A day after the�US president broke with the landmark 2015 agreement�and warned he would seek to hit European businesses that continued to trade with Tehran, the EU vowed to take steps to immunise firms from any US sanctions.

Foreign ministers aim to reassure Tehran that the�nuclear deal�is salvageable at a meeting currently slated for Monday in London which they are expecting their Iranian counterpart Mohammad Javad Zarif to attend.

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