(VOVworld) – The six world powers and Iran will hold new talks in New York on September 18 on the sidelines of the UN General Assembly.

European Union foreign policy chief Catherine Ashton (3rd L) delivers a statement during a ceremony next to British Foreign Secretary William Hague, German Foreign Minister Guido Westerwelle, Iranian Foreign Minister Mohammad Javad Zarif, Chinese Foreign Minister Wang Yi, US Secretary of State John Kerry, Russian Foreign Minister Sergei Lavrov and French Foreign Minister Laurent Fabius (L-R) at the United Nations in Geneva November 24, 2013 (Photo: Reuters)

Michael Mann, a spokesperson for Catherine Ashton, EU High Representative for Foreign Affairs and Security Policy, said a group of senior officials of P5+1—the US, Britain, France, Russia, China, and Germany—and Ashton will participate in the negotiation. Marie Harf, a spokesperson for the US State Department, said Under Secretary of State Wendy Sherman will be the US chief negotiator. Harf expressed her hope that the talks will be upgraded to ministerial level but it’s unknown whether or not foreign ministers including US Secretary of State John Kerry will join the talks. The new deadline for a comprehensive agreement between Iran and P5+1 is November 24. Under the agreement, Iran will revise its nuclear programme and the Western powers will lift their sanctions on Iran.