TEHRAN, May 11 (RIA Novosti) - A delegation from the International Atomic Energy Agency will arrive in Tehran May 12 to continue negotiations on the Islamic Republic's nuclear program, Iran's permanent representative at the IAEA said Sunday.

"The IAEA delegation will arrive in Tehran tomorrow to continue consultations at the expert level, and negotiations will start on the same day," Ali Asghar Soltanieh said.

The IAEA said in a report released in late February that Iran had become more transparent on its nuclear program, but had failed to fully answer allegations relating to nuclear weapons development.

The international community has demanded that Tehran halt uranium enrichment, used both in electricity generation and nuclear weapons production. Iran insists on its right to civilian nuclear energy, and has defied three sets of United Nations sanctions over its nuclear program.