Barack Obama: Iran develop a nuclear weapon is unacceptable and must make efforts to prevent Tehran from developing weapons

U.S. President-elect Barack Obama that Iran is developing nuclear weapons is unacceptable and the international community must make efforts to prevent Tehran from developing such weapons.

Obama also stressed that Iran's support to terrorist organizations must stop, the president said he will review the U.S. team received a congratulatory letter from Iranian President Mahmoud Ahmadinejad that he has responded to it in an appropriate manner.

Barak's statements came at a news conference in Chicago tonight is his first since his election as President of the United States