We have reason to believe he was focused on the NFL agency that was located in the building,” New York City Mayor Eric Adams said during an interview on MSNBC Tuesday.

Fear and confusion were rampant after a gunman shot and killed four people and wounded another in a Midtown Manhattan office tower Monday evening before, authorities said, taking his own life.

Authorities are responding to a call of shots fired in a Midtown Manhattan office building, police told the BBC. A BBC News editor is near the scene. She reported seeing scores of police vehicles and at least one person with a bloodied chest being taken away.

A lone shooter fired shots inside the Manhattan building that houses private-equity firm Blackstone’s Midtown office and the headquarters for the NFL, among other companies.

Police swarmed Midtown Manhattan on Monday as the mayor of New York City said there was "an active shooter investigation" amid reports a police officer had been struck."New Yorkers: there is an active shooter investigation taking place in Midtown right now.