AFP: Some 250 of Iran's Islamist militia volunteered for suicide operations against US forces in Iraq at a rally in the holy Shiite city of Mashhad, the conservative daily Kayhan said Thursday. AFP

TEHRAN - Some 250 of Iran's Islamist militia volunteered for suicide operations against US forces in Iraq at a rally in the holy Shiite city of Mashhad, the conservative daily Kayhan said Thursday.

They expressed their hatred at US military operations in the Iraqi city of Najaf, site of the Imam Ali mausoleum, one of the holiest places for Shiites who form 90 percent of Iran's population, the report said.

Radical groups in Iran have been collecting volunteers for "martyrdom" since May but none have been known to have carried out any suicide operations in Iraq.

The Iranian government denies involvement or interference in Iraqi affairs.