Baghdad: The US military in Iraq has accused Iran of masterminding attacks aimed at coalition troops in Iraq and for arming and training Shiite militants.

Military spokesman Brigadier-General Kevin Bergner said that the information came from a top Hezbollah fighter who was recently captured in Iraq.

Bergner said that senior Iranian leaders know about the operations of Iran's Qods Force in Iraq. "We also understand that senior Iraqi leaders have expressed their concerns to the Iranian government about the activities," he said.

Bergner said the United States had discovered three small camps near Tehran where Iraqi militants were trained by Qods Force and Hezbollah operatives.

He said that the Qods Force was also involved in an attack in Kerbala in January when gunmen, disguised as Americans, entered a government compound and killed a US soldier and abducted four others whom they later killed.

He added that the military has detained a Hezbollah veteran, Ali Mussa Daqduq, who was in Iraq to organise secret cells to mirror Hezbollah's structure in Lebanon.

Iran denies involvement in the violence in Iraq and blames the US-led invasion in 2003 for the bloodshed. Iran's Defence Minister Mostafa Mohammad Najjar dismissed the US claim as a "sheer lie".

Iran does not officially acknowledge the existence of the Qods Force. Military experts say it is a wing of Iran's Revolutionary Guards.