An active shooter incident occurred in Midtown Manhattan, New York, officials said. Here's what to know about 345 Park Ave.

The office building, located at 345 Park Avenue, houses some of the country’s top financial firms, including Blackstone, and the National Football League. According to the company's website, Blackstone stands as the world’s largest alternative asset manager, managing over $1 trillion in assets under management.

Park Avenue is home to several high-profile tenants, making it one of the most prominent office addresses in Midtown Manhattan. The building serves as the global headquarters of Blackstone Group, occupying more than a million square feet across approximately 28 floors.