TEHRAN (AFP/Reuters) - Irans top nuclear negotiator said Tuesday the Islamic republic has updated its package of proposals linked to its controversial atomic programme and is ready for fresh talks with world powers. The Islamic republics package of proposals is updated and ready and will be presented (to world powers), Saeed Jalili, who also heads the countrys Supreme National Security Council, told reporters. We hope a new round of talks will be held, Jalili said. We think we can form talks and new co-operations for peace, justice and development in the world. He said the package would be directed at the five permanent members of the UN Security Council - Britain, China, France, Russia and the US - plus Germany. The six world powers are to meet near Frankfurt on Wednesday (today) to look into harsher UN sanctions against Iran. Jalili said Iran was ready with a revised package which was updated taking into consideration last years global developments, which included the economic recession and the Georgian crisis. Jalili said on Tuesday the 2008 proposal considered resolving issues that the international community suffers from. That package suggested that group co-operations be formed for common concerns. In Moscow, Russian Foreign Minister Sergei Lavrov said tensions surrounding Irans nuclear programme will be resolved only through diplomatic engagement, not isolation of Tehran. This is the only way to ensure stability and security in the region, Lavrov said in an address to students at the Moscow State Institute of International Relations on the eve of key Iran talks in Germany. In Beijing, Chinese Foreign Ministry spokeswoman Jiang Yu told reporters China was keen to work with other nations to revive talks on Irans nuke plan. Chinas vice foreign minister He Yafei will attend Wednesdays meeting near Frankfurt of the five permanent members of the UN Security Council plus Germany, she said. Meanwhile, the White House said the US has heard nothing conclusive from Iran about Tehrans reported new offer for negotiations on its nuclear programme. Weve seen the reports, though we have not heard anything conclusively from the Iranians on that, White House spokesman Robert Gibbs said. Gibbs said the US and its allies still hope Iran will embrace an offer made by six world powers in April to hold talks.