FBI HANDOUT - MUST COURTESY

Orlando, Florida - 20 June 2016

1. STILL of FBI press release showing transcript of calls

AP TELEVISION

Orlando, Florida - 20 June 2016

2. SOUNDBITE (English) Lee Bentley, U.S. Attorney, Middle District of Florida

"This press conference was called to release partial transcripts of calls the shooter, Omar Mateen, had with 911 operators as well as with crisis negotiators with the Orlando Police Department. As the Attorney General announced yesterday, these are partial transcripts, redactions have been made to avoid re-victimizing those who were in the Pulse nightclub during the early morning hours of June 12th."

FBI HANDOUT - MUST COURTESY

Orlando, Florida - 20 June 2016

3. STILL of FBI press release showing transcript of calls

AP TELEVISION

Orlando, Florida - 20 June 2016

4. SOUNDBITE (English) Ron Hopper, Assistant Special Agent in Charge, FBI:

"While we're not releasing the audio, what I can tell you is while the killer made these murderous statements, he did so in a chilling, calm and deliberate manner."

5. Various of media at press conference

6. SOUNDBITE (English) Ron Hopper, Assistant Special Agent in Charge, FBI:

"Killer of 49, and the shooter of 53 others identified himself as an Islamic soldier who pledged allegiance to a terrorist organization which was bent on killing Americans. He does not represent the religion of Islam, but a perverted view, which based on what we know today was inspired by extremist killers. We currently have no evidence that he was directed by a foreign terrorist group, but was radicalized domestically."

7. Various of police at scene of shooting

FBI HANDOUT - MUST COURTESY

Orlando, Florida - 20 June 2016

8. STILL of FBI press release showing excerpt of timeline of events, hostage negotiations

AP TELEVISION

Orlando, Florida - 20 June 2016

9. SOUNDBITE (English) John Mina, Chief of Police, City of Orlando:

"The timeline released based upon radio communications clearly shows our officers were within the club within minutes and engaged the suspect in gunfire and that's important because that engagement and that initial entry caused him to retreat, stop shooting and barricade himself in the bathroom with hostages. So it's important to note that this started as an active shooter situation, our officers took action, and then transitioned into a barricade gunman hostage situation. So after that second exchange of gunfire, upon that initial entry of our officers, there was no other gunfire until the hostage rescue operation took place, so during that three hours, I just want to make sure everyone's clear on that, there was no gunfire."

10. Various of FBI investigators at scene

Newly released transcripts show Orlando gunman Omar Mateen spoke in Arabic to a 911 dispatcher and told a crisis negotiator that the US needed to stop bombing Iraq and Syria.

The FBI released partial transcripts Monday of three 911 calls as it prepared to give additional details about its investigation into the massacre at the Pulse nightclub, which left 49 victims dead. Mateen also died.

Mateen spoke three times with an emergency dispatcher once the massacre was underway.

The FBI says Mateen identified himself as an Islamic soldier. He also claimed to be equipped with bombs in a vehicle outside, though authorities say they've found no evidence of explosives.

He said to a 911 operator, "I'm in Orlando and I did the shootings."

The communications, along with Facebook posts and searches made before and during the shooting, add to the public understanding of the final hours of Mateen's life.