LONDON (Reuters) – A nuclear agreement between Iran and six major powers can be reached by a Nov. 24 deadline, British Foreign Secretary Philip Hammond said on Tuesday, but Tehran needs to show more flexibility in negotiations.

“I believe a deal can be done,” Hammond said following a London meeting with U.S. Secretary of State John Kerry. “But we will not do a bad deal. These negotiations are extremely tough and Iran needs to show more flexibility if we are to succeed.” 

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