Nuclear security

Iran nuclear negotiations enter final day as deadlock persists

High-level negotiations on Iran’s nuclear programme enter their last day on Tuesday before a deadline for agreeing the outline for a comprehensive settlement, with top diplomats still struggling to overcome persistent obstacles.

The US secretary of state, John Kerry, his Iranian opposite number, Mohammad Javad Zarif, alongside foreign ministers from France, the UK, Germany and China worked late into the evening on two consecutive nights in an effort to break the deadlock.