A Los Angeles mother and her 15-year-old son with special needs are speaking out for the first time after his mistaken detainment by federal immigration agents outside of Arleta High School on Monday.

"The trauma's there," said Andreina Mejia. She recounted the moments that her 15-year-old son Nathan Mejia was allegedly pulled from her car and placed in handcuffs while they waited for his sister to complete registration for the new school year.

She says that their vehicle was swarmed by unmarked SUVs while they were parked outside of the school in the morning.

"I kind of panicked ... All I saw was a bunch of men getting out with guns, pointing them at me and my son," she said, speaking with CBS News Los Angeles in Spanish.

Her son, who actually attends another high school, also spo

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