US Secretary of State John Kerry answers questions during a news conference in the Red Sea resort of Sharm El-Sheikh on Saturday. Photo: EPA

Kerry unclear whether an interim deal on Iran’s nuclear programme is within reach

US secretary of state voices caution over negotiations with Tehran, after Congress sends letter saying any deal could be repealed when President Barack Obama leaves office

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US Secretary of State John Kerry answers questions during a news conference in the Red Sea resort of Sharm El-Sheikh on Saturday. Photo: EPA
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