Never-before-seen footage shows the moment ICE agents arrested a woman with family ties to White House Press Secretary Karoline Leavitt .

TMZ obtained video showing Bruna Caroline Ferreira , the mother of Karoline's nephew, being swarmed by federal immigration agents last month in Massachusetts.

Surveillance footage shows Ferreira, who is from Brazil, in a sedan leaving her condo in Revere, Mass around 12:30 PM on November 12 ... when all of a sudden her path is blocked by five unmarked vehicles.

A bunch of agents hop out of the cars and the next thing you know, Ferreira has her hands behind her back and is being thrown in handcuffs.

Ferreira is placed in the back of an SUV and the ICE agents get back in their cars and drive off ... with someone taking her car too. TMZ.com

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