Mottaki made the accusation in a meeting with visiting Japanese Parliamentary delegation.

"At the time of the former Iranian regime (the Pahlavi Dynasty),the United States encouraged the King to find access to the uranium enrichment cycle and build nuclear power plants in Iran, but today it is acting in violation of all the international rules and regulations, including the rules of the NPT," Mottaki was quoted as saying.

"One such attitude could be seen very clearly in the way the United States acted with regard to the recent United Nations Security Council (UNSC) resolution against Iran, they acted restlessly to reach a resolution against us before we could present our response to the six-nation package," he said.

The U.S. is trying to deprive Iran of its right to peaceful nuclear power, he added.

Meanwhile, Mottaki said the resolution was "illegal" and cannot be regarded as the vote of the whole international community.

"We believe that the international community declared its view regarding Iran's access to the nuclear fuel production cycle with the 114 positive votes that its gave in support of Iran's peaceful nuclear activities at the Kuala Lumpur summit of the Non-Aligned Movement (NAM)," he stressed.

The Japanese delegation said Japan wanted to expand ties between the two countries in cultural, economic and political sectors.

On Iran's nuclear case, the head of the delegation also hoped that the issue would be resolved through diplomatic and constructive talks and that Iran would present its response to the six-nation package as soon as possible.

The UN Security Council on July 31 adopted a resolution by a vote of 14 to 1, urging Tehran to "suspend all enrichment-related and reprocessing activities, including research and development" by Aug. 31 or face the prospect of sanctions.

Due to insistence of council members such as Russia and China, the resolution dropped the threat of immediate sanctions and required the council to hold further discussions before sanctions are considered.

Iranian officials have recently expressed indignation over the UN demand to halt enrichment activities, warning the United Nations against taking acrimonious measures to force Iran to comply or Iran would quit the NPT and stop cooperation with the International Atomic Energy Agency (IDEA).

The United States has accused Iran of secretly developing nuclear weapons under a civilian front, a charge categorically denied by Tehran which says that its nuclear program is for peaceful purposes.