KOENIGSTEIN, Germany, (Reuters/Reuters) - World powers pressed Iran on Wednesday to meet them for talks on its disputed nuclear programme before a United Nations General Assembly meeting later this month. Volker Stanzel, political director in the German foreign ministry, made the comments in a statement after chairing a meeting with his counterparts from Russia, China, the United States, France and Britain to discuss Irans nuclear programme. Speaking on behalf of the six powers, Stanzels statement was a response to remarks by Irans chief nuclear negotiator, Saeed Jalili, who was quoted by Iranian state television on Tuesday as saying Tehran was ready to talk to world powers. With reference to Dr Jalilis statement this week that Iran is ready to resume talks, I expect Iran to respond to the offer of talks (made) in April by agreeing to meet before (the) UNGA (UN General Assembly), Stanzel said. A senior European official said the world powers were expressing a desire for a meeting, rather than a concrete expectation that one would take place. The official said the powers wanted a meeting with the Iranians within about two weeks. He added that there was disappointment around the table that there had been no movement on the issue since April. The UN General Assembly meeting is on Sept. 23-25. In Cairo, the European Unions foreign policy chief Javier Solana said on Wednesday he was still waiting for Iran to hand over its updated nuclear proposal. I havent received it and I cannot judge it. If the document is presented, we will read it and we will be happy to discuss it, Solana said. Irans chief nuclear negotiator was quoted as saying on Tuesday that Tehran had prepared an updated nuclear proposal and was ready to talk to world powers. The West suspects Iran wants to develop a nuclear weapons capability under the guise of a declared civilian energy programme. Iran denies this. Meanwhile, the US lobby group United Against Nuclear Iran began an Internet petition Tuesday to pressure the international community for tougher sanctions on Iran to abandon its controversial nuclear programme. UANI said it will file the petition to US President Barack Obama, to each embassy for G20 member countries and to the mayor of Pittsburgh, where the upcoming G20 summit will be held on September 24-25. The group, founded in 2008 by top US diplomats Richard Holbrooke and Dennis Ross, said it hoped nations would take action to impose comprehensive and effective sanctions and other economic measures on the Iranian regime in the hope that this will compel the Iranian regime to change its behaviour and abandon its illicit nuclear programme. In the run up to the Pittsburgh summit, the UANI said it was becoming clear that President (Mahmoud) Ahmadinejad, (supreme leader) Ayatollah (Ali) Khamenei and the Iranian regime are not responding to the overtures of engagement put forward by the US and the international community. The lobby, now headed by Republican lawyer Mark Wallace, said it was therefore time the United States, G8 countries and other members of the G20 group made full use of its upcoming meeting in Pittsburgh to review its current policy with Iran.