ORLANDO, Fla. – Orlando police and fire officials on Thursday released more communication calls in connection with the mass shooting at Pulse nightclub.
[SCROLL BELOW FOR CALLS | FULL COVERAGE: Pulse nightclub shooting]
Forty-nine people were slain and 53 others were injured in the June 12 shooting in Orlando, the worst mass shooting in U.S. history.
The calls to non-emergency numbers shed light into how authorities communicated with each other during the tragedy.
In one of the calls from Orlando Fire Department, officials called in for a bus, calling it a mass causality situation.
Authorities on Wednesday released more 911 calls made during the massacre, including one from a patron who was hiding inside the gay nightclub as Omar Mateen shot dozens of people. In the call, the clubgoer whispers to a dispatcher, "He is going to kill us."
The 911 call was among more than 20 released Wednesday by the Orange County Sheriff's Office, which assisted the Orlando Police Department in responding to the massacre.