Vahidi made the remark in response to the recent allegations made by the out-going U.S. secretary of defense who claimed that Iran was involved in inflicting casualties on U.S. troops in Iraq and he also mentioned that the country is likely to find access to nuclear weapons in the next three years.

The U.S. officials have resorted to such baseless allegations to justify their wrong policies during Gates' term of office, Vahidi was quoted as saying.

About ten years ago, high ranking U.S. officials claimed that Iran would gain access to nuclear weapons within three years but now "We see that ... nothing has happened," said the Iranian minister.

Instead of accusing others, it would be much better for American officials to amend their wrong policies which have brought them failures and defeats in the region, such as in Iraq and Afghanistan, Vahidi said.

Recent missile war-game conducted by the Iranian forces proved the capabilities of Iranian armed forces and also the fact that the sanctions imposed on Iran have no impact on the country's military might, he was quoted as saying.

The Islamic Republic began the 10-day missile drills on Monday. On the first day of the exercises, Iran unveiled underground missile silos and fired Fateh-110 missile.

Iran announced on Tuesday that it "successfully" test-fired 14 short, medium and long-range missiles on the second day of the missile drills.

The West has long accused Iran of secretly developing nuclear weapons under civilian disguise, although Tehran has always denied such charges.