NYPD conducts active shooter drill in Lower Manhattan

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LOWER MANHATTAN — The NYPD conducted an active shooter drill Sunday morning in Lower Manhattan, a move to improve security measures in New York City's subways system.

This was the first active shooter drill held underground in a subway station at Kenmare Street, between Bowery and Elizabeth streets. The drill was planned before the Paris attacks happened.

NYPD began the drill at 4 a.m. with 10 different arms participating, including officers from the counter-terrorism unit. It concluded a little before 9 a.m.

Mayor Bill de Blasio and Commissioner Bill Bratton  held a press conference following the drills.