TEHRAN (Reuters) - Iran and Germany held “frank and serious” talks on saving the 2015 nuclear deal with world powers, Foreign Minister Mohammad Javad Zarif said.

“We had frank and serious talks with (visiting German Foreign Minister Heiko) Maas ... Tehran will cooperate with EU signatories of the deal to save it,” Zarif told a joint news conference in Tehran.

U.S. President Donald Trump withdrew from the pact last year and reimposed sanctions on Iran.