Talks "are continuing, and I see no reason to speed them up," he said at a press conference ending his two-day visit to Venezuela.

"Iran's nuclear program is very clear and very transparent," he said. "We have always said that we are willing to negotiate with any country."

If nuclear energy "is something good then everyone should have it, and if it is bad then nobody should have it," he said.

Ahmadinejad accused Western powers of wanting to control nuclear technology "and when another country needs it they sell it at a high price."

The United States and other Western countries fear that Iran's uranium enrichment program would be used to develop a nuclear bomb.

Washington is pushing for United Nations sanctions to force Tehran to halt the program, especially because Iran ignored a UN resolution that gave it until August 31 to stop enrichment. Tehran insists that it seeks peaceful nuclear power to meet its energy needs.

Countries that oppose Iran's peaceful uranium enrichment program "want to be an obstacle to the development of our people," he said.

Ahmadinejad also blasted the "injustice" of the current United Nations system that allows for five unelected permanent Security Council members with veto rights.

The Iranian leader travels later Monday to New York to participate in the UN General Assembly.

During his Venezuela visit, Ahmadinejad signed energy agreements and inaugurated an Iranian-Venezuelan oil well along with President Hugo Chavez.