LOS ANGELES (CBS) — More than 100 “Occupy LA” protesters marched from City Hall to Nokia Theater and back Tuesday morning to show their support for “Occupy Wall Street” demonstrators who were raided by police in New York.

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The LAPD declared a tactical alert after crowds marched against the flow of traffic and put both themselves and the public in danger.

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A helicopter, eight police cars and officers in riot gear greeted protesters when they returned to the lawn of City Hall, but officers dispersed when the group’s leaders promised police they would remain at the camp.

The LAPD says officers have received special training to deal with the “Occupy LA” encampment.

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Roughly 70 protesters were arrested at New York City’s Zuccotti Park Tuesday morning after they refused orders to leave so their nearly two-month-old camp could be cleaned and restored.