"Anyone who takes up arms to fight with the people, they are worthy of execution," he said. "We ask that the judiciary confront the leaders of the protests, leaders of the violations, and those who are supported by the United States and Israel strongly, and without mercy to provide a lesson for all."

Khatami said those who disturbed the peace and destroyed public property were "at war with God," and said they should be "dealt with without mercy."

He reminded worshippers that Iran's supreme leader, Ayatollah Ali Khamenei, rules by God's design and must not be defied.

The cleric also lashed out at foreign journalists, accusing them of false reporting, and singled out Britain for new criticism.

"In this unrest, Britons have behaved very mischievously and it is fair to add the slogan of 'down with England' to slogan of 'down with USA,'" he said, as his remarks were interrupted by worshippers' chants of "Death to Israel."

Iran's rulers have accused the West, which has become increasingly vocal in its condemnation of the postelection clampdown, of meddling in Iran's internal affairs. Earlier this week, Iran expelled two British diplomats, prompting the expulsion of two Iranian diplomats by Britain.

In Trieste, Italy, foreign ministers of the Group of Eight countries called for an end to the violence in Iran and urged the authorities to find a peaceful solution.

Khatami, meanwhile, alleged that the icon of the opposition, slain protester Neda Agha Soltan, was killed by demonstrators, not the Iranian security forces. Soltan, 27, was killed by a shot to the chest last week, on the sidelines of a protest.

"The proof and evidence shows that they (protesters) have done it themselves and have raised propaganda against the system," he said. "I say hereby that these deceitful media have to know that the ordeal will be over and shame will remain for them."

In London, an Iranian doctor who said he tried to save Soltan as the young woman bled to death, told the BBC she apparently was shot by a member of the Basij militia. Protesters spotted an armed member of the militia on a motorcycle, and stopped and disarmed him, said Dr. Arash Hejazi.

The man appeared to admit shooting Soltan, shouting "I didn't want to kill her," but the furious protesters confiscated his identity card and took photographs of him before letting him go, Hejazi said.

In quelling protests, Basij militiamen have broken up even small groups of people walking together to prevent any possible gathering. Still, dozens of friends and relatives of Soltan managed to pay tribute Friday, arriving at Tehran's Behesht-e Zahra cemetery in groups of two and three, uttering brief prayers and placing flowers on her grave, witnesses said.

Vigils for Soltan have been held around the world.