A New York City police officer and three other people were killed in a shooting in Midtown Manhattan on Monday evening, police confirmed at a late-night news conference.

Rachel Maddow reports breaking news of a shooting in an office building in Manhattan that has left five people dead, including a police officer. Authorities have identified the shooter as Shane Tamura.

NEW YORK (AP) — At least two people, including a New York City police officer, were shot Monday in a midtown office building that houses some of the country’s top financial firms and the National Football League, a person familiar with the matter told The Associated Press.

The Midtown Manhattan office building that was the scene of a deadly shooting reopens Monday, but under very different circumstances.

On Monday, workers trickled back into 345 Park Avenue in Midtown Manhattan, a skyscraper home to high-profile tenants including the NFL and asset management firm Blackstone. New York City police officers and a police dog were seen guarding the building,

Blackstone, one of the world’s largest investment firms, confirmed one of its employees, Wesley LePatner, was among those killed. A Yale graduate, LePatner was a real estate executive, according to Blackstone’s website, and spent more than a decade at Goldman Sachs before joining the firm in 2014.

The lobby of 345 Park Avenue will reopen for the first time since last Monday's mass shooting that left four innocent victims dead.

The New York City office building where a gunman fatally shot four people and himself reopened Monday, one week after the deadly rampage.Workers returned to 345 Park Ave., in Midtown Manhattan under the watchful eyes of NYPD officers and a surplus of additional security following the mass shooting.

The lobby of 345 Park Avenue reopened for the first time since last Monday's mass shooting that left four innocent victims dead.Monday marks one week since the tragedy and it isn't an easy day for employees who returned to work.