NYC emergency responders in active shooter drill; mayor says city 'fundamentally prepared'

Emergency responders in New York City took part in a drill simulating an active shooter in a Manhattan subway station that was influenced by the Paris attacks last week.

The drill took place Sunday morning, just days before one of city's the most high-profile events, the Macy's Thanksgiving Day Parade.

The drill has been planned for some time but got a last-minute addition in the wake of deadly attacks Paris attacks: Officials added an attacker wearing a suicide vest.

New York City Mayor Bill de Blasio says the drill showed that the city is "fundamentally prepared."

Police Commissioner William Bratton says exercises like the subway drill "are vitally necessary" and provide lessons for emergency responders.