ORLANDO, Fla. (AP) -- A patron hiding inside the Pulse gay nightclub as a gunman carries out the worst mass shooting in modern U.S. history whispers to a dispatcher on a 911 call: "He is going to kill us."
The 911 call was among more than 20 released Wednesday by the Orange County Sheriff's Office.
The sheriff's office assisted the Orlando Police Department in responding to the June 12 massacre that killed 49 people.
The Orlando Police has released only a fraction of the more than 600 emergency calls it received during the club shooting.
The man on the call tells a dispatcher that he is uninjured and hiding in a back room.
The dispatcher at first seems confused, not realizing the man is talking about the nightclub shooting.