UPDATE: 4 people killed in Cincinnati shooting, including gunman

UPDATE: Three people, as well a the gunman, have been killed in a shooting in Cincinnati, according to the Associated Press. 

More information is available below. 

At least three people were injured in downtown Cincinnati Thursday morning during what police called an "active shooter" incident, a law enforcement official told ABC News.

The suspect is in custody, the official said.

The Cincinnati Police Department confirmed on Twitter that it was investigating an "active shooter/officer-involved shooting incident" in the lobby and loading dock of a large building near Fountain Square.

The area has been cordoned off, police said.

There was no immediate information about the victims.