Audio: First batch of Pulse 911 calls released six months after deadly Orlando attack

Police in Orlando have released the first batch of 911 recordings from the night of the Pulse nightclub terror attack that left 49 people dead.

The calls were released Monday afternoon after a judge ordered in October that they be made public. The chilling calls shed a light on three hours of the horrific massacre that took place nearly six months ago.

"I need you to apply some pressure, OK?" one 911 dispatcher is heard telling a panicked caller. "Put it right on the wound, wherever she's shot at and apply some pressure, OK? So we can try to control the bleeding, OK?"

Another call came from someone who was not in the club, but who had apparently been in contact with someone they knew still inside the building.

Caller: I have a friend and my brother-in-law who are still hiding in a bathroom.

Dispatcher: Correct, we've got someone on the line with them.

Caller: I just wanted to see if they were getting rescued. He's bleeding a lot.

Dispatcher: We actually have a dispatcher on the line with him, active, and we have SWAT inside the building, They're going to attempt to get him out here soon.

Yet more audio captures the terror in one woman's voice as she reports watching one of the victims "just laying there."

Dispatcher: They're going to help her, OK?

Caller: OK.

Dispatcher: What is she doing right now?

Caller: She's just laying there.

Dispatcher: Is she awake?

Caller: I don't know.

As dispatchers coordinated with victims and their loved ones, however, police were still busy trying to reach the attacker.

"Hello, this is Orlando police again calling back. We need to speak so we can get this peacefully resolved," an officer says in another call.

The shooter, 29-year-old Omar Mateen, was eventually killed after police crashed into the building with an armored vehicle and stun grenades.

The attack, which was the deadliest on U.S. soil since 9/11, killed 49 other people and left dozens more wounded.

(H/T: WESH-TV)