Occupy Wall Street protest turns violent

Two participants in the Occupy Wall Street demonstration wear masks to protest greed.

/ andrewshiue (Flickr)

A multi-day protest against Wall Street "greed" organized by AdBusters, Anonymous and other anti-corporate groups turned violent on Tuesday. "#OccupyWallStreet" protesters accused the New York Police Department of using "extralegal tactics" and said one person "may be in critical condition."

An NYPD spokesman told the AP that one person suffered a minor leg injury while resisting arrest and was treated by paramedics at a police station. Police arrested three people in New York City's Zuccotti Park on Tuesday and six on Monday.

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Occupy Wall Street: Protesters Violently Arrested in New York

Suite101 reports that a police officer told demonstrators they had five minutes to remove tents and draped tarpaulin that were protecting supplies from the rain. The officer said the tents were constituted illegal structures.

But an on-site legal advisor said the illegal structures law only applied to shelters attached to trees, so many demonstrators refused to remove them. The #OccupyWallStreet protest began on Saturday.

Were the protesters treated unlawfully by police? Sound off below.

(The Associated Press and USA Today contributed to this report)