YOUNGSTOWN, Ohio (Reuters) - U.S. President Donald Trump warned Iran on Tuesday to adhere to terms of a nuclear deal with world powers or "there will be big, big problems" for Tehran.

 

At a rally in Youngstown, Ohio, Trump said Iran has been emboldened by the nuclear deal, but "that won't take place much longer." He did not provide specifics.

 

(Reporting by Steve Holland; Editing by Leslie Adler)