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epa04632435 US Secretary of State John Kerry (2-L) arrives at his hotel, prior a bilateral meeting with Iranian Foreign Minister Mohammad Javad Zarif (not pictured) for a new round of nuclear talks, in Geneva, Switzerland, 22 February 2015. US Secretary of State John Kerry arrived in Geneva Sunday to push ahead on a nuclear deal with his Iranian counterpart, Mohammad Javad Zarif, as negotiators were faced with increasing pressure. Iran and the six-country group of Britain, China, France, Russia, the US and Germany aim to agree on a framework by then that would curb Iran's civilian nuclear programme and reduce its ability to make nuclear weapons while in return ending sanctions on Iran. EPA/SALVATORE DI NOLFI Image Credit: EPA

Geneva: US Secretary of State John Kerry and his Iranian counterpart Mohammad Javad Zarif are to resume talks today in Geneva in discussions aimed at striking a deal over Iran’s nuclear programme. The two met for two hours in Geneva on Sunday in another round of nuclear talks to try to narrow gaps as they pressed against a March 31 deadline to reach a political agreement.

The meeting included for the first time US Secretary of Energy Ernest Moniz and Iran’s nuclear chief Ali Akbar Salehi, who spent most of the day separately negotiating technical details of curbing Iran’s nuclear programme.

Kerry is set to testify before the Senate foreign relations committee on Tuesday on the State Department’s 2016 budget request.

Zarif told Iranian state media that mid-level bilateral talks had produced “good discussions but no agreements”, and some differences remained.

“The fundamental gap, in my view, is psychological. Some Western countries, the United States in particular, see sanctions as an asset, a lever to exert pressure on Iran. As long as this thinking persists it will be very hard, difficult to reach a settlement.” Zarif said the inclusion of Moniz and Salehi reflected a need “for higher level people with all-embracing command over all issues.” The presence of a close aide and the brother of Iranian President Hassan Rouhani, Hussain Fereydoon, meant better “coordination with the president,” he added.

The talks took place behind closed doors with no customary photo opportunity for journalists covering the meetings.

Kerry on Saturday cautioned against reading too much into the presence of Moniz in Geneva, which US officials aid was decided after Iran announced Salahi would attend. “There is still a distance to travel,” he told a news conference in London.

The negotiations between Iran and “P5+1” powers - the United States, Britain, Germany, Russia and China - have reached a sensitive stage with divisions remaining, mainly over Iranian uranium enrichment and the pace of removing sanctions.

A recent UN report said Iran had refrained from expanding tests of more efficient models of a machine used to refine uranium under a nuclear agreement with the six world powers.

Development of advanced centrifuges is feared to lead to material potentially suitable for manufacture of nuclear bombs.

Iran says it does not intend to develop atomic bombs.

Kerry said US President Barack Obama was not inclined to extend the talks again. The parties already missed a November 2014 target date.

Obama believed it was “imperative to be able to come to a fundamental political outline and agreement within the time space that we have left,” the secretary of state said.

Zarif said Rouhani would not accept a small, short-term agreement, nor a broad accord that left room for interpretation.