The gunfire broke out at 2:50 pm Friday inside the Bronx Lebanon Hospital in the Bronx.
Television images showed the hospital surrounded by police cars and fire trucks. Police could be seen on the roof of the building, at one point, with their guns drawn.
Bronx-Lebanon Hospital Center describes itself as the largest voluntary, not-for-profit health care system in the south and central Bronx.
The 120-year-old hospital claims nearly 1,000 beds spread across multiple units. Its emergency room is among the busiest in New York City.
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