The Head of the Iranian Parliament’s National Security and Foreign Policy Commission, Alaeddin Boroujerdi has warned that Iran will quit talks about its nuclear program, if the six major powers tighten fresh UN sanctions against the country. According to news agency IRNA Boroujerdi stressed that Iran's conditions should be observed for the resumption of talks and said the Tehran Declaration is still the base for future talks. He urged Russia, France and the US, which are among veto-wielding members of the Security Council, to make changes in their stance. His remarks followed a recent call by major world powers to resume a new round of talks with Tehran over its nuclear program, stressing the door remains open to Iran. Recently, Iranian President Ahmadinejad declared that Tehran will delay any new talks with the P5+1 in order to punish its members for supporting the US-proposed sanctions resolution. Ahmadinejad said Tehran will not accept any new talks before Aug 11, 2010.