A New York City baby sitter was arrested Monday after allegedly stabbing the mom of two young children she'd been hired to care for, with the attack reportedly coming after the two 27-year-old women began arguing over payment.

Miriam Paloma is accused of plunging a knife into the mother’s body and also slashing her once inside a Bronx apartment, the New York Post reported.

“I don’t work for free!” Paloma allegedly yelled during the altercation with the mother.

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The injured mother told CBS New York her two children, a 4-year-old girl and a 7-year-old boy, were in the apartment when Paloma attacked her. She said she took shelter after the stabbing by barricading herself and her children in a bedroom.

“I didn’t know what to do,” the woman told the news station. “I told her to put the knife down. She wouldn’t put the knife down.”

The woman, who was not identified, added: “Previously she had told me that the agency owed her money, and about two hours later she just came out of nowhere and attacked me with a knife. She stabbed me in my back twice, there was blood all over my apartment and children were running back and forth."

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The woman said she met Paloma through a private agency while looking for a caretaker for her children, who have special needs.

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Paloma was charged with assault, acting in a manner injurious to a child, menacing and criminal possession of a weapon.