Iran urges US to drop 'cowboy logic' over nuclear issue
Iranian President Mahmoud Ahmadinejad has said the US must stop using "cowboy logic" if it wants dialogue with Iran over its nuclear programme.
He said he was for negotiations, but that imposing sanctions would not make his country change course.
Following on from recent UN sanctions, Washington has imposed its toughest ever measures on Tehran for refusing to halt its uranium enrichment programme.
The US and major European powers say Iran is trying to build nuclear arms.
Iran says its nuclear programme is peaceful.
"We are for negotiations, but to do so you have to sit down like a good boy," Mr Ahmadinejad said, referring to the US in a speech broadcast live on state television.
"They adopt a resolution to force a dialogue, but this cowboy logic has no place in Iran."
Mr Ahmadinejad added that the US's real concern was not that Iran may make a bomb, but its rise as a regional power.