Iran ? A flood of security forces using tear gas and clubs quickly overwhelmed a small group of rock-throwing protesters near Iran’s parliament Wednesday, and the country’s supreme leader said the outcome of the disputed presidential election will stand — the latest signs of the government’s growing confidence in quelling unrest on the streets.

As the election showdown has shifted, demonstrators are finding themselves increasingly scattered and struggling under a blanket crackdown that the wife of opposition leader Mir Hossein Mousavi compared to martial law. In Wednesday’s clashes, thousands of police crushed hundreds of Mousavi supporters.

The statement by supreme leader Ayatollah Ali Khamenei that the June 12 election of hard-line President Mahmoud Ahmadinejad would not be reversed was accompanied by a vow that the nation’s rulers would never yield to demands from the streets.

Since last week’s protests, the government has unleashed days of escalating force, including the full weight of the powerful Revolutionary Guard and its feared civilian militias on the opposition.