European Union diplomats said there is growing support for imposing new sanctions on Iran as they seek to persuade President Donald Trump to stick by the 2015 nuclear deal between Tehran and six world powers.  No formal decision was taken during a meeting of EU foreign ministers in Luxembourg on Monday, and some countries aren’t convinced that adding sanctions will convince Mr. Trump, diplomats said.  Yet several people involved in Monday’s discussion said ministers were nearing political agreement that action should be taken.

“I think there’s a very broad majority among the European countries that we should look into the possibilities of going further regarding sanctions,” said Danish Foreign Minister Anders Samuelsen.  Irish Foreign Minister Simon Coveney said a move could come by May 12, when Mr. Trump has threatened not to extend sanctions waivers that were a critical part of the nuclear deal.  “It would be sensible to have that conversation in the context of trying to persuade Washington to stick with the nuclear deal,” he said.

 Among the targets under discussion for new sanctions are members of Iran’s Islamic Revolutionary Guard Corps, diplomats said. The U.S. has urged European allies to increase pressure on the Guard and to act against Hezbollah, a Lebanon-based Iranian proxy group.  France, the U.K. and Germany—which joined the U.S., Russia and China in striking the 2015 deal—are currently engaged in talks with Washington on strengthening elements of the deal, which sought to place strict but temporary restrictions on Iran’s nuclear program while lifting most international sanctions.