WASHINGTON, Feb 10: Iran has rejected the US claim that Iraqi militias are using Iranian weapons for attacking US soldiers in Iraq.

Iran's Ambassador to the United Nations Javad Zarif told a popular US radio show that Iran had "no interest" in providing weapons to any insurgent group in Iraq.

“The problem is that the United States has decided on a policy and is trying to find or fabricate evidence if it cannot find one -- and I believe it hasn't been able to find an evidence -- in order to substantiate and corroborate that policy," Mr Zarif said.

US Defence Secretary Robert Gates said on Friday that Iran was the source for sophisticated road-side bombs being used for attacking American troops in Iraq.

"I'm just frankly not specifically certain myself of the details but I understand there is pretty good evidence tying (the bombs) to the Iranians," Mr Gates said at a Nato meeting in Spain.