TEHRAN – A senior European Union diplomat says European states will do their best to sustain a 2015 nuclear deal with Iran, amid stepped-up U.S. opposition to the multilateral accord.

Helga Schmid, the secretary general of the European External Action Service, made the remark in an address to the 4th Europe-Iran Forum in the Swiss city of Zurich on Wednesday.

“This is not a bilateral agreement, it’s a multilateral agreement. As Europeans, we will do everything to make sure it stays,” Schmid said.

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