An emotionally disturbed woman stabbed an NYPD officer trying to make an arrest in Brooklyn Monday morning, plunging a kitchen knife into the cop so violently that the blade broke off in his arm, officials say.
NYPD Lieutenant Stabbed in the Arm by Emotionally Disturbed Woman
The officer had been called to the address by a social worker who was unable to get inside the woman's apartment. When Niebrzydowski went inside, authorities say, the woman grabbed a kitchen knife and started swinging wildly, striking the lieutenant in the arm.

Lieutenant Wojciech Niebrzydowski in the hospital. (Photo: NBC New York screen shot)
Lieutenant Wojciech Niebrzydowski was stabbed inside a building on East 18th Street at about 11:15 a.m., police said.
The officer had been called to the address by a social worker who was unable to get inside the woman's apartment. When Niebrzydowski went inside, authorities say, the woman grabbed a kitchen knife and started swinging wildly, striking the lieutenant in the arm.
Niebrzydowski, a 15-year NYPD veteran, was taken to Kings County Hospital to get stitches for his wound, police told NBC New York .